VFC MP5 Hopup Arm and Nub V2 vipertech To give you potentially essential

To give you potentially essential information I measure each catch several times and write down the exact height of the catch surface on packaging

I would encourage you to complete this piston by buying Bavtechs Brass piston to complete this

I would highly recommend utilizing HPA with this recoil spring as I have done zero testing with regular propane gas

Special chamfering of nozzle to give the best seal to the inlet valve

-4140 steel which means it is corrosion resistant

VFC MP5 Hopup Arm and Nub V2 vipertech To give you potentially essentialThis arm provides more consistent hopup tension on the bucking for more consistent BB backspin. 7075 anodized aluminum. Rubber Nub. This new version is CNC machined rather than 3d printed. This hopup arm allows for the use of a rubber nub which will greatly improve your hopup consistency!