The Suomi m/31, designed by Aimo Lahti, is a highly reliable Finnish submachine gun known for its exceptional machining and accuracy. Despite its heavy weight and high 900 RPM rate of fire, its design features like a non-reciprocating charging handle and a pneumatic venting system contribute to its controllability. It saw extensive use in WWII and remained in service for decades, with various magazine types and a later muzzle brake variant.
This review showcases a PWS AR pistol modified with a Slide Fire stock, achieving a civilian-legal 900 RPM rate of fire. The video demonstrates bump-firing techniques, the use of a flash enhancer muzzle device, and night shooting with tracers. It concludes with an explosive demonstration, highlighting the system's high rate of fire and visual impact.
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