Maple Leaf MR Double Air Seal Hop-Up Bucking for VSR-10 / GBB Airsoft Guns

Features High quality, durable rubber construction Additional clip to help ensure a tight air seal. 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 Narrower entrance results in more consistent power output Larger & wider contact area inside of BB pellet, has better hop effect with heavy BB Manufacturer: Maple Leaf   Specifications: Suggested FPS: Up to 360 FPS Compatibility: Tokyo Marui & Other Compatible Brand VSR-10 / VSR-Spec / GBB Hop-Up Units