Action Army AAP01 Gas Route Seal (part No.76)

The Black Mamba Upper Receiver Kit from Action Army Company is a precision-engineered aluminum upgrade designed for the AAP-01 Assassin Pistol series. Crafted through CNC machining, the kit replaces the original housing and outer barrel, enhancing both fit and durability. Practical 21mm rails on the upper and lower sides accommodate accessories, while the adjustable rear sport sight can be removed for aftermarket folding stock installation. The distinctive CNC-machined compensator attaches securely with a 14mm left-hand thread (CCW), offering customization options. Designed exclusively for the AAP-01 GBB Pistol series, the Black Mamba kit presents a functional and aesthetic enhancement.