Pirate Arms MP5 Fixed Stock GBBR Hop-Up Unit replaces the paddle mount on

replaces the paddle mount on the polymer holster

Built from the ground up specifically to maximize the quick-handling performance of AR-platform rifles

on OUTER COVER and on OUTER BELT)

Also includes a set of red lenses

Pirate Arms MP5 Fixed Stock GBBR Hop-Up Unit replaces the paddle mount onSlim design and absolute top quality. This stock can be used to convert an MP5 A5 into an MP5 A4 or to replace a damaged MP5 A4 stock. Includes Receiver Pin and Butt Pad. Sling attachment point. Extremely solid plastic construction with metal sling plate. Butt Pad can be removed by sliding it downwards to access battery compartment. For Airsoft Models only. Black in colour.