50° R-HOP FOR SILVERBACK & OTHER BARRELS

-new version made of new silicone rubber blend

-hardness of rubber remains more stable in temperature changes than previous version

-injection molded

-silicone made to provide required backspin for the heavy

-made for Silverback stock barrels, also fits Lambda and a few other barrels like stock TM

-no cuts/sanding/glue required

-thickness is the same as the barrel walls

-does what any other well made R-hop has to