Madbull Upgraded Cylinder Set - Standard for SIG551 Color_Red Design For Repalce the Original

Design For Repalce the Original Flash Hider

Rotating Barrel Lockup System

Metal and Nylon Made

produced by Israel Military Industries Ltd (now Israel Weapon Industries (IWI) Ltd)

Madbull Upgraded Cylinder Set - Standard for SIG551 Color_Red Design For Repalce the OriginalThe 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