Airtech Studios ARA Advanced R-Hop Arm for G&G M4 Rotary Hop-up Chamber

Airtech Studios ARA Advanced R-Hop Arm for G&G M4 Rotary Hop-up Chamber Polymer Construction Specifically designed to be a high-quality upgrade part Aimed to maximize the performance of your R Hop in the Designated Platform Suitable For G&G M4/ 308WNH/ CM16 APR556/ CM16 ARP9Â Series Airsoft Guns Rotary Hop-up Chamber