Daniel Defense's Gen II Muzzle Climb Mitigator greatly reduces muzzle rise and recoil by re-directing gasses through calibrated ports. This accommodates faster and more accurate follow-up shots and reduces shooter fatigue from recoil. The Muzzle Climb Mitigator is precision machined from 17-4 stainless steel and is given a salt bath nitride finish for durability and long service life. Specs: Threads: 5/8"-24 TPILength: 2.078" (standard)Weight: 2.52 ounces Daniel Defense Gen II 1/2"-28 Muzzle Climb Mitigator Assembly 06-049-16140