Madbull Upgraded Cylinder Set - Standard Version for SIG552 reg_GP With recessed panels for better

With recessed panels for better grip

Design for Replace the Original Speed Buffer & Spring Set

Polymer Polymer Vertical Grip (Bottom screw tighten the grip onto rail ) (Tan) & Pistol Gripa

-Steel made Bipod

Madbull Upgraded Cylinder Set - Standard Version for SIG552 reg_GP With recessed panels for betterThe Madbull Standard Cylinder Set has all the necessary parts to upgrade or replace the cylinder assembly in your gearbox. The Cylinder Set includes a cylinder head, air seal nozzle, Madbull Alien green PX piston, the cylinder, and a polycarbonate mushroom piston head w bearings. The Cylinder set is compatible with most major brands of AEG. Take your standard gearbox to the next level of performance with the Madbull upgraded cylinder set. It is a must