AIRTECH STUDIOS G&G Rotary Hop-up Chamber ARA Advanced R-HOP Arm

Thinking of installing an R-hop setup? Instead of modifying your regulating arm by cutting / sanding, risking damage or unbalanced pressing force, use our ready-to-install R-HOP arm.Features: · Designed for G&G Rotating Hop-Up Chambers · No Modification Needed the stock arm and add M-nub (our arm provides both) · Easy placement with no modifications required · Made of injected polymer