| Pistolet maszynowy wz. 1984 | |
|---|---|
PM-84P Glauberyt | |
| Type | |
| Place of origin | Polish People's Republic |
| Service history | |
| In service | 1984–present |
| Used by | |
| Wars | |
| Production history | |
| Designer | OBR Radom |
| Designed | 1981 |
| Manufacturer | FB Radom |
| Produced | 1984–present |
| Variants | PM-84 (Makarov ammunition version), PM-84P (Parabellum ammunition version), PM-98, PM-98S (increased auto fire to 770 rpm), PM-06 (with top rail to mount optical sights with silencer use & 3 position straight stock) |
| Specifications | |
| Mass | 1.84 kg (PM-84) 2.17 kg (PM-84P) 2.30 kg (PM-98, PM-98S) 2.50 kg (PM-06) |
| Length | 560 mm with stock extended / 354 mm stock collapsed (PM-84) 575 mm with stock extended / 375 mm with stock collapsed (PM-84P) 605 mm with stock extended / 405 mm with stock collapsed (PM-98, PM-98S) 615 mm with stock fully extended (3 position stock) / 392 mm with stock collapsed (PM-06) |
| Barrel length | 165 mm (PM-84) 185 mm (PM-84P, PM-98, PM-98S, PM-06) |
| Width | 51 mm (PM-84) 54 mm (PM-84P) 58 mm (PM-98, PM-98S) 62 mm (PM-06) |
| Height | 160 mm (PM-84, PM-84P) 172 mm (PM-98, PM-98S) 224 mm (PM-06) |
| Cartridge | 9×18mm Makarov (PM-84) 9×19mm Parabellum (PM-84P, PM-98, PM-98S, PM-06) |
| Caliber | 9mm |
| Action | Straight blowback, closed bolt |
| Rate of fire | 600 rounds/min (PM-84) 640 rounds/min (PM-84P, PM-98, PM-06) 770 rounds/min (PM-98S) |
| Muzzle velocity | 330m/s (PM-84) 360 m/s (PM-84P, PM-98, PM-98S, PM-06) |
| Effective firing range | 75 to 200 m sight adjustment (9×19mm Parabellum) |
| Feed system | 15- and 25-roundbox magazines |
| Sights | Fixed, front post and rear flip-up sight with notch and aperture settings, 280 mm sight radius |
ThePM-84 Glauberyt (Polish forglauberite) is a Polishsubmachine gun. It is a personal weapon intended for combat and self-defence at ranges up to 150 m with single shot or fully automatic fire mode. It features a compact design, minimum overall dimensions, small weight, very good accuracy, and fire stability. It is designed forheavy weapons platoons personnel and reconnaissance detachments, special anti-terrorist and police troops.
In service with the Polish military and police it replaced the earlierPM-63 RAK submachine gun.

TheGlauberyt is aselect-fire,straight blowback-operated firearm that fires from theclosed bolt position. Its design influence can be seen to mimic theUzi. However it features a last shot bolt hold open/release like modern service pistols unlike any othersubmachine guns of its time. The PM-84/PM-84P also features ambidextrous charging handles on both sides (influenced by thevz.61 Škorpion). A two-bar retractable buttstock tucks right into the side of the weapon. The magazine release is in the heel of the pistol grip. The Glauberyt feeds from 15-round flush magazines and 25-round extended magazines. Fire selector Z = SAFE, P = SEMI, C = FULL AUTO, and sits above rear of the pistol grip. When the firearm is on SAFE, the bolt is locked and prevented from moving. A folding fore grip rests in front of the trigger guard (in the style of thePM-63 RAK), and an optional tactical flashlight/laser grip can also be mounted, replacing the folding fore grip.
Modern PM-98/PM-06 variants utilize a thumb magazine release. A new slot in the magazine is required to be cut out to work in the later Glauberyts.

