60 shore Hardness Rhop for Prometheus EG Barrel

As you can see this R-hop has perfect fit. It has the exact wall thickness as the barrel. It doesn’t stick out from the plain of the barrel. When I touch it with my finger I can’t feel height difference between the barrel and the R-hop. They are available in 50 (blue) ,60 (green), 70(yellow) shore hardness and they are made from high quality, cold resistant silicone.

Does not fit on the Krytac barrels from Prometheus!