GSh-18
GSh-18 was developed from 1998-2000 for use by Russian Military and Law Enforcement bodies. It was specifically designed for use with 9×19 7N31 AP ammunition (Roughly Western +P+ load equivalent, but with a steel penetrator).
Its design aesthetic matches the PP-2000 submachine gun, and like the PP-2000 it is in use by Russian MVD, LE, Rosguard and Armed Forces Spetsnaz units.
A simple one this week, thank you all for your support. VEPR VPO 205 and RPK16 are next.