Modify Sora R-Hop Mound Rubber for VSR-10/ GBB (60 Degree)

Modify Sora R-Hop Mound Rubber for VSR-10/ GBB (60 Degree) Rubber Construction| 60 Degree Rubber Design For Increase The Performance of Your Airsoft Gun Suitable For Tokyo Marui VSR-10 Series Sniper Gas Rifle Airsoft Guns