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| ADS amphibious rifle | |
|---|---|
 The 5.45mm ADS rifle | |
| Type | Bullpupamphibiousassault rifle |
| Place of origin | Russia |
| Service history | |
| In service | 2013–Present |
| Used by | Russia |
| Production history | |
| Designer | KBP Instrument Design Bureau |
| Designed | 2007 |
| Manufacturer | KBP Instrument Design Bureau |
| Produced | 2013 |
| Specifications | |
| Mass | 4.6 kg |
| Length | 685 mm |
| Barrel length | 418 mm |
| Cartridge | 5.45×39mm M74 7N6 / 7N10 / 7N22 for above-water fire 5.45×39mm PSP for under-water fire 40 mm caseless (grenade launcher) |
| Caliber | 5.45mm |
| Action | Gas-operated,rotating bolt |
| Rate of fire | 700 rpm |
| Muzzle velocity | 900 m/s with the above-water fire cartridges |
| Maximum firing range | 500 m |
| Feed system | 30-roundAK-74detachable box magazine, 45-roundRPK-74 box magazine, 60-roundAK-200 compatiblecasket magazine |
| Sights | Iron sights,Picatinny rail exists for mounting red dot/night/optical sights |
TheADS (Russian:АДС - Автомат Двухсредный Специальный - Special Dual-environment Automatic rifle)[1] is a Russianassault rifle specially made forcombat divers. It is of abullpup layout and is chambered in the5.45×39mm M74 round. The ADS can adapt a suppressor andoptical sights.
For several decades, Soviet and then Russian combat divers and navalcommando units were armed with special weapons for underwater combat, including theSPP-1 pistol andAPS underwater assault rifle. The main drawback of these weapons is that their effectiveness (and life expectancy) for use above the water is severely degraded compared to standard 'above water' weapons. Therefore, combat divers and otherSpetsnaz units, when engaged in amphibious operations (below the water and above), had to carry on the mission two types of weapons - one for underwater use and another for use when on shore or on board of enemy surface vessels. The first known attempt to produce a single weapon which could be effectively used either below or above the water was theASM-DT experimental 'dual-medium' or amphibious assault rifle, developed inTula in around 2000.
The main problem with ASM-DT was that it still had to use long, specially designed underwater ammunition when submerged, which necessitated an overlong receiver, complicated magazine well of adjustable size and two types of magazines. This was found unsuitable for combat use, and further development commenced at the famous arms development facilityKBP (Instrument Design Bureau) in Tula. By 2005, the design team at KBP has successfully developed effective underwater ammunition which retains the compact size of the standard issue5.45×39mm rounds, and thus can be loaded and fired from standardAK-74-type box magazines, and, more importantly, fired from the same chambers and barrels that would accept the 'above-water' ammunition.
The rifle was designed by Russia's Tula Instrument Design Bureau. It is equipped with a 40 mm grenade launcher which has a range of 400 m and fires various modifications of VOG-25 grenade (no mention is made of grenades for underwater use).[2] The weight of the gun including the grenade launcher and without sight is approximately 4.6 kg. The weapon uses5.45×39mm bullets and fires at a firing rate of 700 rounds per minute with a range on land of 500 m. The weapon's effective underwater firing range when using the specially designed cartridge is about 25 meters at a depth of 5 meters and 18 m at a depth of 20 m (the underwater cartridge very similar in external appearance to the standard5.45×39mm ammunition except for a different specially calculated bullet shape). The length of the bullet is 53.5 mm compared to an overall cartridge length of 57 mm.[citation needed]Fired cartridge extraction to the forward makes ambidextrous shooting convenient and reduces gas pollution in the face of the shooter region.[3]
The ADS was under extensive field trials by undisclosed units of Russian Naval special forces. It will replace APS underwater weapons and, possibly, some AK-74M general issue assault rifles in service with Russian Navy special operation units and other Russian special forces, which might be engaged in underwater operations (security, counter-terrorism in the sea, etc.).[4] It entered service in August 2013.[5]
Rosoboronexport signed a contract with one of the CIS countries for the supply of ADS.[6] As of September 2016, ADS entered service with theRussian Ministry of Defence Special Operations Force Command combat divers.[7] RussianMoD released a video where ADS amphibious rifle is seen being used underwater by Russian Submarine Forces, during one of their defense drills.[8]
The Russian armed forces has received the first batch of ADS amphibious assault rifles in December 2019.[9]
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North Korea - Produced locally without license.[10]
Russia
