KBP OTs-27.

The OTs-27 Berdysh (??-27 ??????, Russian for "poleaxe") is a Russian semi-automatic pistol developed in the early 1990s by TsKIB SOO as a candidate to replace the standard Makarov PM service pistol in service with the Russian Armed Forces. The OTs-27 is a blowback-operated weapon. The recoil spring is wound around the barrel, while the lower slide lug accommodates a recoil spring buffer. The slide flock, mounted on the frame, also serves as the slide stop. The pistol features an external-hammer trigger assembly and a cylindrical spiral hammer spring. The pistol can operate both in a double-action and a single-action mode. When set in the middle position, the ambidextrous manual safety Sever blocks the hammer, the firing pin, and the slide. The hammer may be locked both in released and cocked positions. The hammer may be locked without firing a shot by rotating the safety Sever upwards. After decocking the hammer, the safety lever automatically returns to the 'safe' middle position. The pistol is fitted with iron sights. The trigger guard is shaped so as to allow two-handed firing. There are grooves on the frame under the barrel for mounting a laser target designator.