Description The Liberty LS1 Muzzle Brake is radially ported to offer optimal recoil and muzzle rise reduction, with no need for timing the brake by a gunsmith. The LS1 has a built in mount for the Liberty Sovereign 30 caliber suppressor and is threaded in 5/8-24 with a .30 caliber bore diameter. Also compatible with the Mystic X family of silencers by using the Sovereign to Mystic X adapter. - "I got the proper adapter and I am good to go. You guys rock!" C. Beloungea- "Thanks so much for following up with me , really appreciate it. All my questions were answered and You guys rock !!! Love your suppressors" - Bob