OTs-33 Pernach
From Wikipedia, the free encyclopedia
| OTs-33 Pernach | |
|---|---|
| Type | Machine Pistol |
| Place of origin |  Russia |
| Service history | |
| Used by | Russia |
| Production history | |
| Designer | Igor Stechkin |
| Designed | 1994 |
| Manufacturer | Tula Arsenal |
| Produced | 1994- |
| Specifications | |
| Weight | 1.22 kg |
| Length | 225 mm |
| Barrel length | 140 mm |
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| Cartridge | 9x18mm Makarov |
| Action | Blowback |
| Muzzle velocity | 340 m/s |
| Effective range | 50 m |
| Maximum range | 200 m |
| Feed system | 18 or 27-round detachable box magazine |
The OTs-33 Pernach (Russian: ОЦ-33 Пернач) is a Russian machine pistol, derived from the APS Stechkin. The Pernach (Russian: multivaned mace) is an automatic (machine) pistols designed to replace the obsolete APS pistols in various special OMON units in Russian police and other paramilitary units. It was developed in 1995 by Igor Stechkin at the TsKIB SOO company, and it went into limited production by the KBP Instrument Design Bureau. It has a simplified "square" shape and is much easier (and less expensive) to manufacture, as well as simpler in design. It is capable of fully automatic and semi-automatic fire, and can be fitted with detachable folding shoulder stock, made of steel.
[edit] Design details
The OTs-33 is a blowback-operated, selective-fire weapon. While there's no positive lock between the slide and barrel, the barrel is allowed to recoil in the frame for a short distance. As the gun is fired, the slide recoils back, and at the final stage of recoil it hits the barrel and carries it back. The additional weigh of the barrel helps to slow down the slide and thus decrease the felt recoil and the cyclic rate of fire without the complicated rate reducer, found in APS pistol. The OTs-33 has a double action trigger with an exposed hammer. The ambidextrous slide mounted safety/fire mode selector has thee positions, for safe (top), single fire (middle) and fully automatic mode (down).
When the safety/selector lever is placed in the "safe" position, it safely de-cocks the hammer and then returns to the safe position. The ambidextrous lever inside the trigger guard, just ahead of the trigger, is used to disassemble the pistol (unload the pistol, pull the lever down, then remove the barrel/slide assembly). The OTs-33 is fed using double-column magazines with a capacity of 18 (standard) or 27 (optional) rounds. The OTs-33 frame has an integral accessory rail under the barrel for tactical lights or laser pointers. The forward section of the barrel and slide is ported to act as a muzzle recoil compensator. The fixed iron sights have white inserts for improved visibility and acquisition. The OTs-33 is issued with leather holster that features two separate magazine pouches and a shoulder stock holster.
