These AR tools are designed to be used with Daniel Defense and Primary Weapon Systems barrel nuts and rails. Properly install, seat, and mount your delta ring with the MadBull PWS wrench or MadBull Daniel Defense wrench.
Features: - Fully licensed by Daniel Defense and PWS, respectively. - PWS Wrench to be used with but not limited to the Diablo, Mk110, Mk112, and other PWS rail systems. - Daniel Defense Wrench to used with but not limited to the RIS II, AR Lite, and Omega series free float rail systems. - Steel construction.