KRYTAC Trident M4 / LMG Rotary Hop Up

KRYTAC Trident M4 / LMG Rotary Hop Up Unit As many round fired from the pistol, the Hop Up Chamber Set will get old This Parts is Design for Replace the Original Hop up Chamber Set Also, fit tightly to the barrel base to keep the chamber being centered Includes all parts needed for installation Require expert on installing into stock AEG As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed