Must be paired with The YHM sRx Adapter; Attaches to Suppressors with 1-3/8"x24 Thread Pitch; Muzzle device length is 1.1"; Length added to barrel is 0.475" (on barrels with 0.6" threads); No need to shim/time to barrel; Small/low profile; No moving parts; Large taper in front of the threads allows for consistent mounting; Lighter than many Q.D. mounting offerings on the market; Can be permanently attached to firearm barrel needed