The Dead Air RXD R-Series Flash Hider Front Caps minimizes muzzle flash through its 6-tine design. Designed for easy maintenance, these advanced front caps are now compatible with standard off-the-shelf tools- such as an 11/16" socket or open-ended wrench- readily available at most hardware stores. This allows for quick, hassle-free removal, torquing, and replacement in the field or at the bench. Compatible with the Ruger x Dead Air Silencers RXD30Ti, as well as all of the R-series front cap threaded silencers, and PYRO 2.0. FeaturesBlack Nitride0.53" Long (0.18" added for flash hider)Diameter: 1.25"