Interdynamic MP-9 SMG: Origin of the TEC-9
This video delves into the Interdynamic MP-9, the precursor to the TEC-9, highlighting its simple open-bolt design and selector mechanism. It details the fire selector ('F' for semi-auto, 'A' for auto) and the unique notch safety on the charging handle slot. The explanation of the trigger's internal mechanics, particularly the disconnector's role in semi-automatic fire, showcases the firearm's historical engineering.









