Cowcow Tech Hop Rubbers. Set of 3 with different hardnesses. Great for changing with the seasons for gas-powered pistols, giving optimal hop during changing temperatures. Harder for summer, softer for winter.
-High quality anti-oil rubber material
-3 different hardness included (50°White/60°Red/70°Black) for selection
-Re-designed entrance shape for better fitting with nozzle
-Flared chamber shape for better BB feeding
-Effectively extend the shooting range by enhancing the spin velocity
-Will work in any Tokyo Marui compatible Hi Capa, Glock Series, M&P9, M4A1 MWS
CCT HopUp busking is manufactured with high-quality anti-oil rubber material. It can prevent swelling, scratching and deforming during heavy usage. Its re-designed entrance shape can better fit with nozzle movement to prevent jamming. The flared chamber allows BB feeding much smoother. The 70° / 60° / 50° options inside the package are able to enhance different levels of spin velocity (70° Low / 60° Middle / 50° High) which is suitable for different shooting environments and at different ranges.