T8 Steel Bolt Carrier Hammer Assist for Marui MWS GBB (Super High Speed Ver.)
Metal Construction
Designed to be a High-Speed Assist for Faster Operation For your Guns
The longer threads allow for a finer adjustment for shorter travel which contributes to an even faster rate of operations
Suitable For Tokyo Marui M4 MWS Series Airsoft Gas Blow Back GBB Rifle