T8 Flat Hop Up Arms Set for Tokyo Marui GBB

T8 Flat Hop Up Arms Set for Tokyo Marui GBB Rubber Construction Include 2x Hop Up Rubber Design For Upgrade the Original Parts Designed to allow for better performance for those who prefer using a flat hop style hop-up chamber. The solid construction and two optional rubbers offer added stability and consistency on a shot-to-shot basis. Suitable For Tokyo Marui M4 MWS Series Airsoft Gas Blow Back GBB Rifle Airsoft Guns