Details
The Run In Workshop T8 steel bolt carrier assist is designed to be a high-speed assist for faster operation of your TM M4 MWS GBBR. The threads allow for a finer adjustment for shorter travel.
Compatibility:
Tokyo Marui M4 MWS GBBR
Includes:
x1 Run In Workshop T8 Steel Bolt Carrier Hammer Assist (High Speed Version) for Tokyo Marui MWS GBBR