Check the listing for details. Kaw Valley Precision .308/7.62 Linear Comp 5/8x24 Black. Color: Black, Condition: New. Listed at 44.95 USD. Linear Comp Specs: Thread: 5/8" x 24OAL: 2 1/8"OD: .95 Inches Caliber: 30 Caliber Firearms and Smaller (given proper barrel threading)Weight: 2.9oz Heat Treatment: Melonite QPQSurface Finish: QPQ Black Design Features: Wrench Flats: 3/4" wrench flat for easy installation Radial Fluting: 8 weight reducing flutes This compensator will work on all 30 caliber or smaller rifles threaded for 5/8"x24 including 308, 270, 243, 6.5 Grendel, 6.5 Creedmoore, 6.8SPC, 7.62x39, and many more. KVP Linear Compensators are a muzzle device designed to collect and direct all the muzzle gases forward, away from the shooter. Unlike other types of muzzle devices, KVP linear comps actually lower the decibel the shooter experiences while shooting the rifle. This lowered perceived decibel is especially noticeable in shorter barreled rifles while shooting high power rounds. KVP Products are proudly designed and made here in Kansas!