3.6 kg (7.9 lb) (20 in barrel) 3.3 kg (7.3 lb) (16.4 in barrel) 3.2 kg (7.1 lb) (15 in barrel) 4.9 kg (10.8 lb) (HBAR) 2.97 kg (6.5 lb) (AUG 9mm)[1]
Length
790 mm (31.1 in) (20 in barrel)[1] 725 mm (28.5 in) (16.4 in barrel) 690 mm (27.2 in) (15 in barrel) 900 mm (35.4 in) (HBAR) 665 mm (26.2 in) (AUG 9mm)[1]
Steyr AUG importation into theUnited States began in the 1980s as the AUG/SA (SA denoting semi-automatic). The AUG was banned from importation in 1989 underPresident George H. W. Bush'sexecutive order restricting the import of foreign-made semiautomatic rifles deemed not to have "a legitimate sporting use." Six years into the ban, AUG buyers gained a reprieve as cosmetic changes to the carbine's design allowed importation once again. Changes included redesigning itspistol grip into a thumbhole stock, and leaving its barrelunthreaded to prevent attachment of aflash hider orsuppressor.
TheFederal Assault Weapons Ban, passed in 1994, further prohibited the manufacture of additional Steyr AUGs or their copies. The ban expired in 2004, and in 2008,Steyr Arms worked withSabre Defence to produce parts legally in the U.S.[8][9]
The AUG is chambered for the5.56×45mm NATO cartridge and has the standard 1:9rifling twist that will stabilise both SS109/M855 and M193 rounds. Some nations including Australia, Ireland and New Zealand use a version with a 1:7 twist optimised for the SS109 NATO round. The submachine gun variants are chambered in either9×19mm Parabellum or.40 S&W.
The AUG comes with a muzzle cap, spare bolt for left-handed shooters, blank-firing adaptor, cleaning kit, sling and either an AmericanM7 or German KCB-77 M1 bayonet.[citation needed]
The AUG has arotating bolt that features 7 radial locking lugs and is unlocked through a pin on the bolt body and a recessed camming guide machined into the bolt carrier. The bolt carrier itself is guided by two guide rods brazed to it and these rods run inside steel bearings in the receiver. The guide rods are hollow and contain the return springs. The bolt also contains a claw extractor that forms the eighth locking lug and a spring-loaded "bump"-type casing ejector.
The gas cylinder is offset to the right side of the barrel and works with one of the two guide rods. The AUG uses a short-stroke piston system where the right guide rod serves as the action rod, transmitting the rearward motion of the gas-driven piston to the bolt carrier. The left-hand rod provides retracting handle pressure when connected by the forward assist and can also be utilised as a reamer to remove fouling in the gas cylinder. The firearm uses a 3-position gas valve. The first setting, marked with a small dot, is used for normal operation. The second setting, illustrated with a large dot, indicates fouled conditions. The third, "GR" closed position is used to launchrifle grenades (of the non-bullet trap type).
The AUG is hammer-fired and the firing mechanism is contained in the rear of the stock, near the butt, covered by a synthetic rubber shoulder plate. The hammer group is made entirely of plastics except for the springs and pins and is contained in an open-topped plastic box which lies between the magazine and the buttplate. During firing the recoiling bolt group travels over the top of it, resetting the hammer. Since the trigger is located some distance away, it transmits its energy through a sear lever which passes by the side of the magazine. The firing pin is operated by a polymer hammer under pressure from a coil spring.
Some common criticisms of the rifle's trigger are the trigger feeling "mushy" and having excessive take-up. This is due to the relatively imprecise nature of how the trigger linkage is installed by the factory. The trigger can be "tuned" by the user in roughly 15 to 60 minutes with a 12 inch-pound wrench with a hex bit.
The quick-change barrel used in the AUG is cold hammer-forged for increased precision and durability, its bore, chamber and certain components of the gas system arechrome-plated (currently nitride on US market rifles). The standard rifle-length barrel features 6 right-hand grooves and a rifling twist rate of 228 mm (1:9 in). An external sleeve is shrunk on to the barrel and carries the gas port and cylinder, gas valve and forward grip hinge jaw. There is a short cylinder which contains a piston and its associated return spring. The barrel locks into a steel insert inside the receiver through a system of eight lugs arranged around the chamber end and is equipped with a folding vertical grip that helps to pivot and withdraw the barrel during barrel changes. The most compact of the barrels has a fixed vertical grip.
The receiver housing is a steel-reinforced aluminium extrusion finished with a baked enamel coating.[10] It holds the steel bearings for the barrel lugs and the guide rods. The non-reciprocating plastic cocking handle works in a slot on the left side of the receiver and is connected to the bolt carrier's left guide rod. The cocking handle has aforward assist feature—alternatively called a "silent cocking device"—allowing the user to fully push the bolt home without racking the charging handle.[10][11] A bolt hold-open device locks the bolt carrier back after the last round has been fired.[11] The newer AUG A3s feature a bolt release button; prior to this development, all AUGs and the USR required the user to rack the charging handle to disengage the bolt hold-open after inserting a fresh magazine. Older versions of the AUG can be upgraded to use the newer A3 stock and hammer pack.
The rifle's stock is made from fibreglass-reinforcedpolyamide 66. At the forward end is the pistol grip with an enlarged forward trigger guard completely enclosing the firing hand that allows the rifle to be operated with winter gloves.[10] The trigger is hung permanently on the pistol grip, together with its two operating rods which run in guides past the magazine housing. Behind that is the locking catch for the stock group. Pressing this to the right will separate the receiver and stock. The magazine catch is behind the housing, on the underside of the stock. Above the housing are the two ejector openings, one of which is always covered by a removable strip of plastic. The rear of the stock forms the actual shoulder rest which contains the hammer unit and the end of the bolt path. The butt is closed by an endplate which is held in place by the rear sling swivel. This swivel is attached to a pin which pushes in across the butt and secures the plate. There is a cavity under the buttplate that holds a cleaning kit.
Steyr AUGs with tan and black finish. Note the different type of Picatinny rail upper receivers
The AUG's receiver can be changed from the standard model with a carrying handle and built-in 1.5× optical sight[12] to the 'Special Receiver' which has a STANAGscope mount to allow for the use of a variety of scopes and sights.[12] In later models (A2 and A3), it has several different types of receivers with Picatinny rails.[13]
Steyr AUG's telescopic sight. Note the backup iron sights on top of the scope
The AUG has a 1.5× telescopic sight that is integrated with the receiver casting and is made bySwarovski Optik. It contains a simple black ringreticle. The sight cannot be set to a specific range but can be adjusted for windage and elevation for an initial zero and is designed to be calibrated for 300 m. It also has a backup iron sight with a rear notch and front blade, cast into the top of the aluminium optical sight housing, in case of failure or damage to the primary optical sight. The sight is also equipped with a set of three illuminated dots (one on the front blade and two at the rear) for use in low-level lighting conditions. In order to mount a wide range of optics and accessories, a receiver with aNATO-standard Picatinny rail and detachable carrying handle was also developed and introduced in December 1997.[10] Modern AUGs are equipped with, or can have the Picatinny rail swapped out with, an A3SF 60mm height x3 optic with optional riser and additional crosshair within the "donut" black ring. This specific optic can be piggybacked with other optics on top, as is the norm with Austrian special forces, due to the Picatinny rail included on top of the optic.[14]
While the AUG is not fully ambidextrous, it can be configured to be used by left- or right-handed operators by changing the bolt to one that has the extractor and ejector on the appropriate side and moving the blanking plate to cover the ejection port not in use. However, there exists also a right-hand-only stock that allows for the use ofSTANAG magazines.[15][16]
Until March 19th, 2025, the NATO stock did not have a bolt release next to the magazine. To release the bolt after emptying the magazine, the user would need to remove the empty magazine, insert a fresh magazine, pull the charging handle back and release.
With the updated NATO stock, the user can release the bolt using the bolt release next to the magazine well.
Steyr AUG with a loaded 30-round proprietary magazine
The AUG is fed from a detachable proprietary translucent-polymer double-column box magazine with either a 30- or 42-round capacity.[17] Optional NATO stock for STANAG magazine compatibility is also available.[4][17]
The AUG's firing mechanism can also be changed at will, into a variety of configurations, including semi-auto and full-auto, semi-auto and three-round-burst, semi-auto-only, or any other combination that the user desires.[12] It can also be converted into an open-bolt full-auto-only mode of fire, which allows for improved cooling and eliminatescook off problems when the AUG is used as a light machine gun.[12]
The AUG features aprogressive trigger (pulling the trigger halfway producessemi-automatic fire, pulling the trigger all the way to the rear producesfully automatic fire), and a safety mechanism (cross-bolt, button type) located immediately above the hand grip.[10] In its "safe" position (white dot), the trigger is mechanically disabled; pressing the safety button to the left exposes a red dot and indicates the weapon is ready to fire. Some versions have an ALO or "automatic lockout", a small projection at the base of the trigger. This was first included on the Irish Defence Forces variant of the rifle, and soon after, the Australian Defence Forces variant. In the exposed position, the ALO stops the trigger being squeezed past the semi-automatic position. If needed, the ALO can be pushed up to permit automatic fire.[18]
The AUG features quick detachable barrels and are available in different lengths; including a 382 mm (15 in) compact length, 417 mm (16.4 in) carbine length and 508 mm (20 in) standard rifle-length. The muzzle device primarily used for these barrel lengths is a three-pronged, open-type flash suppressor. The flash suppressors are screwed to the muzzle and internally threaded to take ablank-firing attachment. AUGs equipped with the 508 mm (20 in) pattern barrels produced for military purposes are also equipped with bayonet lugs. The 417 mm (16.4 in) and 508 mm (20 in) barrels are capable of launching NATO STANAG type 22 mm rifle grenades from their integral flash hiders without the use of an adapter. AUG barrels can also mount40 mmM203 orAG36grenade launchers. Steyr also offers 508 mm (20 in) barrel configurations fitted with a fixed, post front-sight used on the rifle version with apertureiron sights.[10] A 621 mm (24.4 in) heavy barrel with an integrated lightweight foldingbipod with a closed-type ported muzzle device (combination offlash suppressor and compensator) is also available, primarily used on the AUG HBAR.[12]
Steyr AUG A1 with a 417 mm (16.4 in) barrelSteyr AUG A2 with a 417 mm (16.4 in) barrel and a Picatinny rail on the upper receiver in place of the integral opticSteyr AUG A3-CQC prototype with a Leupold CQ/T optic and Surefire M900 weapon light foregrip
TheSteyr AUG A1 is fitted with an integral 1.5x optic and is available with a choice of olive or black furniture.[4]
TheSteyr AUG A2, introduced in December 1997, features a redesigned charging handle and a detachable telescopic sight which can be replaced with aPicatinny rail. Its modularity allows a 24.4-inch barrel to be used, and the folding grip can be replaced with a Picatinny rail section, to which a bipod can be installed.[19]
TheSteyr AUG A3 features a Picatinny rail on top of the receiver and an external bolt release.[20] In 2019, Steyr Arms introduced a.300 AAC Blackout variant of the AUG A3.[21][22]
TheSteyr AUG A3 SF features a Picatinny rail mounted on the telescopic sight and on the right side of the receiver, and includes an external bolt release.[23] The integrated telescopic sight is offered in 1.5× or 3× magnification.
TheSteyr AUG A3-CQC was a cancelled prototype development of the AUG A3 and was first displayed by Steyr at the SHOT Show in 2006 and 2007. It differs in having a railed handguard attached ahead of the receiver and features an 18 in (457 mm) barrel. Because this extra railed section needed to be removed to strip the rifle for cleaning, the left side featured a quick detach lever. Due to the concerns over the extra cost and weight, along with potential issues with the reliability and consistency of the detachable handguard, the prototypes received little interest and were last seen promoted by Steyr in 2008.[24] In 2012, the American company PJA obtained the five original prototypes from Steyr and reverse engineered them in order to produce a US-made AUG A3-CQC and conversion kits.[25]
TheSteyr AUG HBAR (Heavy Barrelled Automatic Rifle), also known as the AUG LMG (light machine gun), is essentially anautomatic rifle variant of the AUG. It features a heavier and longer 621 mm (24.4 in) barrel with an integrated bipod, and the standard AUG receiver with 1.5× magnification scope. It fires from anopen bolt to be more suitable for sustained fire, mitigating accidental cook offs. To accomplish this, it uses a modified bolt carrier, striker and trigger mechanism with sear.[12]
TheSteyr AUG HBAR-T (Heavy Barrelled Automatic Rifle-Telescope) is similar to the AUG HBAR, but features a special receiver with a STANAG scope mount system usually fitted with a Schmidt & Bender 4×25 or Kahles ZF69 6×42 optical sight.
TheSteyr AUG 9mm, also known as the AUG Para, is asubmachine gun variant of the AUG chambered for the9×19mm Parabellum cartridge and has been produced since 1988.[1] It differs from the rifle variants by having a unique 420 mm (16.5 in) barrel with six right-hand grooves at a 250 mm (1:9.8 in) rifling twist rate, with a recoil compensator, a slightly different charging handle, and a magazine well adapter enabling the use ofSteyr MPi 69 25- and 32-round box magazines. It isblowback-operated and fires from a closed bolt, omitting the original rifle's gas system.[26][27] A conversion kit used to transform any assault rifle configuration into the submachine gun configuration is also available. The conversion kit consists of a barrel, bolt, adapter insert, and magazine.
TheSteyr AUG A3 9mm XS is a 9×19mm variant of the AUG A3. It fires at a cyclic rate of around 650–720 rounds per minute. It is available in either a 325 mm (12.8 in),[28] 350 mm (13.8 in), 365 mm (14.4 in), 420 mm (16.5 in) barrel lengths, and features a Picatinny rail system similar to the AUG A3.[17]
TheSteyr AUG 40 is a.40 S&W variant of the AUG A3 9mm XS that usesGlock-compatible double-stack .40 S&W magazines. It is offered with a 332 mm (13.1 in) barrel.[29][30]
Austrian soldiers with an StG 77 KPE during a combat exerciseAustrian special forces with an StG 77 A2 Kommando during a training exercise
TheStG 77 (Sturmgewehr 77) is the designation given by theAustrian Armed Forces when they adopted the Steyr AUG in 1977.[31]
TheStG 77 A2 Kommando is the designation given by the Austrian Special Forces (Jagdkommando) for the Steyr AUG A3 SF when it was adopted in late 2007.[32][33]
TheStG 77 KPE is the Austrian Army's designation for an upgraded StG 77. Where the A1 housing group was replaced with the A3 SF housing and was adopted in 2017.
TheStG 77 A1 MP is the Austrian Military Police's designation for the StG 77. The rifles differ from the StG 77 by having a Picatinny rail for anAimpoint Micro T1 andred dot magnifier, aflash hider from Ase-Utra, andRheinmetall Vario Raylaser and light module mounted on the right side. Adopted in 2018.
TheStG 77 A1 MOD is the Austrian Army's designation of a further modified StG 77. A total of 14,400 rifles will be issued to both the militia and cadre presence units.[34][35]
TheAustralian Defence Force (ADF) adopted a modified Steyr AUG designated as the F88 Austeyr.[36] From the late 1980s, the F88 became the ADF's standard individual weapon replacing theL1A1 SLR andM16A1 in theAustralian Army.[37] From the mid-2010s, the Enhanced F88 (EF88) Austeyr replaced the F88.[38]
Australian soldiers on patrol with an F88 Austeyr fitted with an M203 grenade launcherAustralian soldier with an F88A1 AusteyrAustralian soldiers with an F88SA2 Austeyr
In 1985, the ADF ordered 67,000 F88 Austeyrs that were manufactured by Australian Defence Industries (now Thales Australia) at theirLithgow Small Arms Factory under licence from Steyr Mannlicher AG.[39][40][41]
TheF88 Austeyr was the standard-issue rifle that had a barrel length of 508 mm (20 in).[42]
TheF88CAusteyr was thecarbine variant of the F88 Austeyr that featured a shorter 407 mm (16 in) barrel and was without a bayonet lug.[42][43] The F88C was issued to armoured, helicopter andparachute units.[44]
TheF88S (Special)Austeyr was a variant of the F88 Austeyr that entered service in 1993 with an Accuracy International Mounting System (AIMS) to allow the attachment of a different sighting device.[48][43]
TheF88SA1 Austeyr was an upgrade of the F88 Austeyr that entered service in 2003. The F88SA1 had an integratedPicatinny rail in place of the standard optical sight.[49] The rail enabled the fitting of the ElcanWildcat sight, anAN/PVS-4 night vision sight and a night aiming device.[50][51] The F88S was withdrawn from service.[52]
TheF88SA1CAusteyr was the carbine variant of the F88SA1 Austeyr that had a barrel length of 407 mm (16 in).[51]
TheF88SA2Austeyr was an upgrade of the F88 Austeyr that entered service in 2009, issued to units serving in thewar in Afghanistan. It was withdrawn due to issues and re-entered service in the end of 2010.[53] The rifle had a two-tone colour with a "dark khaki undercarriage and a light brown upper" to match theDisruptive Pattern Desert Uniform.[54] Design improvements included a modified gas system for increased reliability, an enlarged ejection port, a longer Picatinny Rail on top of the weapon, a modified sight housing and a side rail mount for a torch and Night Aiming Device (NAD).[55][56] The F1A1 ammunition was improved to suit the F88SA2.[57][55] The rifle could be fitted with a standard 1.5x sight or the TrijiconAdvanced Combat Optical Gunsight (ACOG).[58]
F88 Austeyrs that were fitted with theM203 grenade launcher from the M16A1 had a barrel length of 620 mm (24.4 in).[42][59] In 2001, the Grenade Launcher Attachment (GLA) replaced the M203 from the M16A1 and also theM79 grenade launcher.[59][60] The ADF ordered 3167 GLAs.[60] The GLA featured an Inter-bar (armourer attached) interface, a RM Equipment M203PI grenade launcher, and aKnight's Armament quadrant sight assembly to which a Firepointred dot sight was attached.[59][60] The bayonet lug and forward vertical grip were removed to fit the Inter-bar.[52]
EF88 Austeyr displayed during RIMPAC in 2022US Army soldiers with EF88C Austeyr
TheEF88 (Enhanced F88) was developed byThales Australia for the Australian Defence Force under Project LAND 125 Phase 3C to replace the F88 Austeyr.[64][65][66] Thales Australia offers an export version of the EF88 theF90.[67][68]
The EF88 is produced at Thales Australia'sLithgow Arms factory.[69] The contract to develop an improved lighter version of the F88 Austeyr was signed with Thales Australia in December 2011.[65] In September 2014, Thales Australia was awarded alow rate initial production contract after achieving provisional design acceptance.[70] In June 2015, EF88s from the low rate initial production were issued to the Army infantry battalion1 RAR to trial before the anticipated rollout of the EF88 in 2016.[71][66] In July 2015, the ADF placed an initial order of 30,000 rifles in two versions a standard rifle with a 20 in (508 mm) barrel and a carbine with a 16 in (406 mm) barrel.[69][72][64]
In July 2020, a second order was placed for an additional 8,500 rifles.[64][73] Internally and externally the EF88 is still similar to the Steyr AUG, although it has received many distinctive upgrades and changes.[74] The colour that was chosen was a black-finish compared to the two-tone colour with a "dark khaki undercarriage and a light brown upper" finish of the F88A2s.[75]
Upgrades include the following:
LongerNATO STANAG top rail with a NATO STANAG bottom rail and side rail[76][77]
Thales tested two grenade launchers for the EF88 the MadritschML40AUS designed specifically for the EF88 and the SteyrSL40.[82][83][84] In January 2014, Thales selected the Steyr SL40 for the EF88 reportedly the ML40AUS had "significant" engineering concerns.[68][85] The ADF ordered 2,277 SL40s.[64] The SL40 is mounted on the rifle's bottom accessory rail and its trigger protrudes inside the rifle's trigger guard, and uses a Trijicon holographic sight for its sighting system.[85][83] The SL40 is a derivative of theSteyr GL40 grenade launcher and weighs 1.025 kg (2.26 lb) and has a 180 mm (7.1 in) long barrel.[83][68] The SL40 does not require a tool to attach it or remove it from the rifle.[66]
Within the Australian Defence Force, there has been some discussion about the suitability of the EF88 when compared against variants of the AR-15 platform such as theM4 carbine andSIG MCX.[86]
In November 2021,Defence Technology Review reported that Thales Australia, in collaboration with the Australian Army, were developing a next-generation individual weapon in bullpup configuration chambered for the 6.8 mm calibre.[87]
In June 2012, Thales debuted the F90 at theEurosatory military exhibition in Paris.[88] Lithgow Arms offers the F90 in three different barrel lengths: 360 mm (14.2 in), 407 mm (16 in), and 508 mm (20 in).[89] The barrels are fixed cold hammer forged, chrome lined and fluted.[89] The rifle has heat-vent cut outs for better heat ventilation.[90] The rifle can also be fitted with the SL40 grenade launcher.[89] Its nominal cyclic rate of fire is 740 rounds per minute.[77]
In 2017, Dasan Manufacturing was granted the rights to manufacture the F90, in an effort to bid them to the South Korean military for future replacements of the DaewooK2.[91] It is marketed by Dasan as the DSR-90.[92]
At the Defexpo 2018 convention, MKU gained Indian licensing rights to manufacture the F90 for Indian contracts.[93] In April 2019, the F90CQB variant was planned to be submitted in conjunction with the Kalyani Group for Indian Army requirements on a 5.56 mm NATO carbine.[94] As of April 2020, Bharat Forge is Thales' partner to manufacture the F90.[95] BF will market it to Indian military and law enforcement, and for potential export sales.[96]
In 2016,The Firearm Blog reported that a semi-automatic variant of the F90 theAtrax would be available to the US civilian market.[97] In 2018,The Firearm Blog reported that Dasan USA had commenced producing components for the Atrax.[98] In 2019,The Firearm Blog reported that Thales had cancelled the rifle for "ethical reasons."[99]
In March 2018, Thales Australia introduced theF90MBR (Modular Bullpup Rifle). It is a successor to the F90, which features STANAG magazine compatibility.[100]
Irish soldier with an AUG Mod 14 during aUNDOF deployment
The Steyr AUG 1 entered service with the Irish Defence Forces in 1988.[101]
In 2014, theIrish Army began a modernisation programme to upgrade their Steyr AUG A1s, which was possible due to the modularity of the AUG. The result was theSteyr AUG Mod 14, and on the same year the army began issuing the rifle to its operational units.[101]
They replaced the original A1 housing/receiver group (with 1.5× optical sight) with an A3 housing/receiver group (with a Picatinny rail on top and right side) allowing a modern optical sight to be fitted.[101] TheTrijicon ACOG 4× sight was selected as the new optical sight of the rifle.[101] The rifle features the ALO "automatic lockout" trigger, which can also be found in the Australian and New Zealand variants.
New Zealand Army with the IW Steyr on a military scenario-driven exercise
TheNew Zealand Defence Force adopted the AUG A1 model, designatedIndividual Weapon, Steyr (IW Steyr) as its primary individual weapon. 5,000 Austrian made rifles entered service in 1988, later supplemented by a further 15,000 manufactured in Australia by ADI.[102][37] In 2013,Stuff reported that New Zealand had 13,000 IW Steyrs.[103] In 2015, New Zealand selected the Lewis Machine and ToolMars-L 5.56mm rifle to replace the IW Steyr and began transitioning to the new rifle in 2017.[104][105]
The variants of the New Zealand IW Steyr were equipped with a progressive trigger (without full-auto lock-out tab as seen on F88 models) and a three-position safety. The sight added a crosshair to the circle reticule. New Zealand issued both factory and locally modified carbines alongside the full-length rifle variant.[citation needed]
TheSteyr AUG P is a semi-automatic only variant of the AUG A1 available to the civilian and law enforcement markets. It features the carbine length, 407 mm (16 in) barrel and a modified bolt, carrier and trigger assembly that will only allow semi-automatic fire. The rifle also has a slightly different optical sight that features a reticule with a fine dot in the centre of the aiming circle, allowing for more precise aiming.
TheSteyr AUG P Special Receiver is similar to the AUG P but features a STANAG scope mount system on top of the receiver.
TheSteyr AUG SA is a semi-automatic only variant of the AUG A1, built for civilian use and import to the US before being banned from importation in 1989.
TheSteyr AUG Z is a semi-automatic only variant in compliance with Austrian weapon laws, somewhat similar to the AUG A2 but lacking the quick detachable barrels and is unable to accept the trigger group from the assault rifles. It is intended primarily for civilian use.[106]
TheSteyr AUG Z Sport is a semi-automatic only variant, somewhat similar to the AUG Z, for use in sport shooting approved by the BKA in Germany. This variant has a special handguard without the typical front grip.[107]
TheSteyr AUG Z SP was a straight pull only configuration, somewhat similar to the AUG Z, and was intended primarily for civilian use; it was sold only in the United Kingdom.[108]
TheSteyr AUG Z A3 is a semi-automatic only variant of the AUG Z similar to the AUG A3 introduced in 2010.
TheSteyr AUG Z A3 9mm is a semi-automatic only 9×19mm Parabellum variant of the AUG Z A3.
TheSteyr AUG Z A3 SE is a semi-automatic only variant of the AUG Z similar to the AUG A3 SF.
TheSteyr USR is an AUG A2 modified to meet the former Federal Assault Weapons Ban (AWB) (or Public Safety and Recreational Firearms Use Protection Act) regulations. The USR has a thumb hole stock molded in gray polymer. The barrel is made by GSI Inc and is a 20” bull barrel. No threads so no muzzle device. The barrel takedown button has been cut off.
TheSteyr AUG A3 SA USA is a semi-automatic only variant of the AUG A3 with a 407 mm (16.0 in) barrel, made available for the U.S. civilian market in April 2009.[109]
TheSteyr AUG A3 SA NATO: is a semi-automatic only variant similar to the AUG A3 SA USA, but uses a right-hand-only,NATOSTANAG magazine stock assembly.[15][16]
TheSteyr AUG A3 M1 is a semi-automatic only variant of the AUG A3 SF with a detachable optical sight which can be replaced withPicatinny rails and a 416 mm (16.4 in) barrel length, manufactured in the US by Steyr Arms US since October 2014.[110]
TheSteyr AUG A3 M2 is a semi-automatic only variant of the AUG A3 with an extended Picatinny rail and a 416 mm (16.4 in) barrel length. It reverted to the A1 style charging handle with a push-button forward assist and an added slot to lock it in the forward position. It was designed to accommodate anM-LOK handguard manufactured by Steyr. It has been manufactured in the US by Steyr Arms US since April 2024.[111]
TheSTG-556 was introduced at the 2007SHOT Show, it was manufactured byMicrotech Small Arms Research Inc. (a subsidiary ofMicrotech Knives) an AUG A1 clone significantly re-engineered in its working system and principle as it features a bolt hold-open device as seen on the M16 rifle; otherwise the MSAR STG-556 retains the original AUG features, such as feeding from proprietary translucent plastic magazines and having the quick-change barrel option. The STG-556 can be converted from either having a telescopic sight or a Picatinny rail. It is available in either civilian (semi-automatic only) configuration, and military and law enforcement (selective fire) configuration.[11][112]
TheAXR was revealed at the 2007 SHOT Show, manufactured by Tactical Products Design Inc. as an AUG A2 clone capab le of semi-automatic only fire, aimed for both the civilian and law enforcement markets, and fed by STANAG magazines; the manufacturer sells clear plastic magazines which are STANAG 4179 compliant and will readily fit in any rifle with a compatible magazine catch.[113] The rifle does not have the integral scope, allowing users to use any kind of scopes or laser sights on the Picatinny rail.[114]
TheOberland Arms OA-UG is a German clone of the AUG intended for use in Germany in civilian sales.[115]
TheType 68[116][117] is a Taiwanese copy of the AUG with notable differences including a smaller trigger guard and the use of iron sights instead of the original's telescopic sight (although optical sights can still be optionally mounted on the carrying handle). Developed as a potential alternative to the T65 assault rifle and (in the form of a heavy-barrel variant) replacement to theType 57A assault rifle, it ultimately did not enter service after the ROC military decided to adopt theMinimi andT75 as their future light machine gun.[118][119][120]
Luxembourg: Standard infantry rifle of theLuxembourg Army. The HBAR variant is also employed as the section support weapon.[143]
Malaysia: Made under licence from Steyr bySME Ordnance.[144] Local production of the AUG rifle series started in 1991[145] with a joint production with Steyr that started in 2004.[146][147] Lawsuits from Steyr emerged when Malaysia decided to withdraw from joint production.[148]
Tunisia: The Steyr AUG has been the primary weapon of the Tunisian Army since 1978. The first regular unit to be issued with the AUG A1 was the GTS. Subsequently, the leadership began arming the National Guard with Sturmgewehr 58 (FN FAL) and the army with the AUG A1/A2/A3 variants, including the Army's Special Forces.[116][141]
New Zealand: Used from 1988 until 2019. The first 5,000 weapons delivered were manufactured in Austria by Steyr Daimler Puch. Latter versions were the Australian ADI-made Austeyr F88 variant, locally designatedIW Steyr (Individual Weapon Steyr.)[175] From August 2015, theLewis Machine Tools 5.56 mm MARS-L started to replace the Steyr AUG.[176]
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