Airtech Studios Hop Up Advanced Brass Ring for Tokyo Marui NGRS HK416C/ HK416 / HK417 / M4 Sopmod /

Airtech Studios Hop Up Advanced Brass Ring for Tokyo Marui NGRS HK416C/ HK416 / HK417 / M4 Sopmod / SCAR The Airtech Studios True Centering Unit and Advanced Stabilizer O-ring set is a Hop-up stabilization set designed for Tokyo Marui NGRS 416 / 416C / 417 / M4 SOPMOD / SCAR hop-up chambers. This set allows a full lock on the inner barrel and hop-up chamber to stabilize the hop system in order to prevent vibrational shifts on the Hop set-up. This will improve the overall consistency of the airsoft gun. Suitable For Tokyo Marui NGRS (Next Generation Recoil System)HK416/ HK416C/ HK417/ M4 SOPMOD/ SCAR Electric AEG Rifle Airsoft Guns