The PRC compensator, originally introduced for .30 only, was designed to reduce felt recoil as much as possible. Redesigned in 2018, now in a variety of caliber options, this compensator is very effective in reducing felt recoil, while being California compliant. The PRC design produces a low ground signature and overpressure to the shooter It also gives ultimate control for seeing impacts through your optic and stabilizes follow up shots. PRC 30 Specs: Caliber: .308, 6.5 Creedmoor, .300BLK, 7.62x39 Thread Pitch: 5/8x24 Material: 4140 Steel, FNC LIFE HD treated Length: 3.0"