This video delves into Heckler & Koch's experimental submachine guns, the SMG and SMG II, developed in the 1980s for the US Navy. Designed to replace the MP5 and optimized for suppressed fire, these hammer-fired, closed-bolt, blowback-operated weapons featured collapsing stocks and vertical front grips. The SMG boasted a complex rear sight for subsonic and supersonic rounds, while the SMG II introduced a velocity-reduction system. Despite their innovative features, the Navy ultimately did not adopt either model, though their development influenced the later UMP program.
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