The Vault

Flapper Locking video

By request, today we’re going to look at one of the less common locking systems used in firearms design: flapper locking. The idea was first patented by a Swede named Friberg in 1870, but a practical gun was not built on the design until the 1907 Kjellman. The most extensive use of the system was [...]

SGM photos from Aberdeen

The SG43 was a medium machine gun developed in Russia during World War II (1943, as you might have gathered from the designation). The initial development was done by Degtyarev, who was responsible for the current light (DP28) and heavy (DShK) machine guns in Russian service. His designs used a pair of locking flaps to [...]