Designed for 9MM pistol caliber sub-guns; Compatible with Xeno Adapter and suppressors like Wolfman, Ghost, Primal, Nomad, Sierra 5; Compact length and low weight profile; Nitrided 4140 steel construction for strength and corrosion resistance; Left-hand threads prevent adapter unthreading from suppressor; Large taper and accessible tool surfaces for secure installation; Supports suppressors with smaller blast chambers; Easy to clean without damaging threads; Provides high repeatability and durability for precision shooting