SHS Metal Hop Up Chamber for M4
Basic metal upgrade Hop Up unit from SHS. Offers better support, rigidity, and smoother feeding than stock plastic hop ups.
Replacement for your stock v.2 M4/M16...
Make repairs to your airsoft gun and ensure it is optimal working order with the SRC Airsoft Hop Up Bucking. Never miss out on a game due to repairs again. Always keep your tech kit stocked in the...
