MR Hop Silicon VSR/GBB Bucking 85° (Black)

"Maximum Range" MR.HOP Silicon

features:
 ?For GBB/VSR10 spec inner barrel and without modify
 ?Larger & wider contact area inside of BB pellet, has better hop effect with heavy BB
 ?For Heavy BB pellet only
 ?The "Shield" shape groove design has better hop effect when tensioner/lever press it
 ?Retain the steel "C-ring" design for airseal from "Transformer HOP"series

Suggestion of use:

• Yellow 60° - muzzle velocity below 100 m/s
• Blue 70° - muzzle velocity 100~130 m/s
• Red 80° - muzzle velocity 130~160 m/s
• Black 85° - muzzle velocity above 160 m/s