GSh-18: full disassembly & assembly

The GSh-18 (Cyrillic: ГШ-18) is a 9 mm semi-automatic pistol developed by the KBP Instrument Design Bureau in Tula during the 1990s. The pistol’s name is derived from its designers — Gryazev and Shipunov, and the number 18 denotes the magazine capacity. The GSh-18 is a rotating-barrel, short recoil, locked-breech pistol with 10 locking lugs spaced equally around the barrel, the large locking surface area resulting in a strong lockup, making it suitable for high-velocity ammunition loads. The GSh-18 may be