Lonex M4/M16 AEG Inner Barrel Lock Hop-Up Clip (5 Pack) (GG08-18)
Retro Arms AEG CNC Hop Up Chamber Collet Nut
RPS AEG Hop Up Chamber/Barrel Rubber Brace
Retro Arms AEG Hop Up Lever Pin (3 Pack) (GG07-04)
Retro Arms AR15 AEG Regulation Gear Lock