ZH M249 Hop Up quality and robust product。

quality and robust product。

Size: 19*11*17cm

and two sides

fit most airsoft and gel blasters with 20mm picatinny rails

Step back in time with the WW2 US Army M1936 Vintage Soldier Belt

ZH M249 Hop Up quality and robust product。Increase your firing distance and accuracy with the Zehua M249 Hop Up. The adjustable grab screw allows you to customize the backspin on gel balls, while the compact size and 3D printed PLA material make it a perfect fit for the ZH M249 saw v3 v4 gel ball blaster. Easy to install alongside the original flash hider. Features: increases firing distance and improve accuracy by applying backspin on the gel balls as they leave the barrel. Totally