SRU Short Recoil System For WE/GHK/VFC/MWS/WA AR M4 GBB Airsoft

Key Feature The SHORT RECOIL SYSTEM is an optional extension for the SARB-15 kit, designed exclusively for Airsoft GBB platforms. It allows you to retain the original BCG and convert various AR/M4 GBB systems into a bullpup configuration. With the extension installed, the length of pull reaches 16.3", aligning with standard bullpup proportions. Thanks to smart ergonomic design, handling remains natural and comfortable. KIT Includes: Rear stock extension adapter (SLS 3D Fusion printed) Short tube extension CNC short buffer Short recoil spring Note: The gold short buffer tube, end cap, and rubber butt pad are reused from the original SARB-15 kit. This kit does not include a BCG; please use your original BCG.