Description
  • For GBB/VSR10 spec inner barrel and without modify.
  • Addition of a slimmed down black air-seal ring for better efficiency.
  • The "Shield" shape groove design has better hop effect when tensioner/lever press it.
  • Larger & wider contact area inside of BB pellet, has better hop effect with heavy BB.
  • Anti-frozen silicone material
  • Yellow 60°
  • blue 70°
  • Pink 80°