American Precision Arms Gen 4 Little Bastard Self-Timing Muzzle Brake (.30 cal, 5/8x24)

This is the .30-caliber-bore Gen 4 Little Bastard for a .308 or 7.62 Ruger Precision Rifle. It keeps the same self-timing jam-nut and tunable gas-screw system as the 6.5mm version, but the wider bore clears .30-caliber bullets, so it is the correct pick for a .308 RPR rather than the 6.5mm brake. The brake threads onto the 5/8x24 muzzle and locks level against a jam-nut, so a shooter can index the ports perfectly flat without a gunsmith, then bias the gas ports to counter muzzle rise for a specific load. The nitrided finish resists the carbon and heat that a heavy PRS round count throws at the muzzle.