The Glock is no stranger to military service, having been originally designed for the Austrian Bundesheer in the 1980s. It’s currently one of the most popular military and police sidearms worldwide, including with U.S. Army special forces and elite units in the Russian security services.
The Russian arms industry produced many guns that copied the Glock’s features, such as the GSh-18, a polymer framed, striker-fired gun with a trigger safety.
But the original may still be the best. The Glock appears to be preferred by the most elite units, including the FSB’s Alpha Antiterror group.
Glock 17s in Russian service bear distinctive slide markings that indicate that they are property of the security services.