Airtech Studios Advanced R-Hop Arm for M4/M16 - VFC M4 restocked - Improved Blunt Impact Protection:

- Improved Blunt Impact Protection: 4DT suspension technologies have shown to provide significantly better blunt impact protection than standard OEM padding

This function allows you to conveniently access and remove the reservoir

Base cap at the bottom of the grip allows internal grip access for general storage (GBBR version only)

Open: 12" x 10"

- Berry Amendment (10 U

Airtech Studios Advanced R-Hop Arm for M4/M16 - VFC M4 restocked - Improved Blunt Impact Protection:Features Save cost on expensive aftermarket hop up chambers for R Hop usage No need to modify the stock arm and add an M nub, the ARA solves both issues Easy drop in installation with no modifications required Achieve perfect top down center force give your r hop a perfect, evenly forced pressure Thinking of installing a R hop set up in your rifle? Instead of modifying your stock arm by cutting sanding, which may run the risk of an unbalanced force