5KU CNC Aluminum Type 2 Lightweight BBU Blowback Unit For Action Army AAP 01 GBB Airsoft (Blue) Inner-Barrel-Length-(mm)_133 Receiver Body (Black)

Receiver Body (Black)

and made it one of the indelible icons of the Vietnam War

CNC 6061 Aluminum Construction (hard black anodize finish)

Functions:Momentary On & Contstant On

5KU CNC Aluminum Type 2 Lightweight BBU Blowback Unit For Action Army AAP 01 GBB Airsoft (Blue) Inner-Barrel-Length-(mm)_133 Receiver Body (Black)An airsoft blowback unit is a mechanical system that simulates the recoil of a firearm in an airsoft gun. When a BB is fired, the blowback unit uses some of the air pressure generated by the shot to move a portion of the gun's slide or bolt back and forth, creating a recoil effect that mimics the action of a real firearm. Blowback units are most commonly found in gas powered airsoft guns, where the expanding gas is used to both propel the BB and