The Guntec USA 1326-MB-P-S-308-GREY Micro Slip Over Barrel Shroud enhances precision with stunning design and superior performance. Engineered to fit .308 and 300 Blackout calibers, this lightweight accessory decreases recoil and improves stability, elevating your shooting experience. US Made T6 Aluminum construction Compact Micro Design, weighing only 3.2 oz Length: 3 inches Threads begin approx 1.25 inches down the shroud Dual-purpose unit: functions as both a barrel shroud and a muzzle compensator Slips over barrel and threads down from the inside Multi Porting "Gatling Gun" Style muzzle comp reduces felt recoil up to 70% Covers 1 5/8 inches of the barrel Compatible with .308/300 Blackout calibers 5/8 x 24 thread Outer diameter: 1.1875 inches Designed for use on AR pistols Boost your shooting efficiency with the Guntec USA Micro Slip Over Barrel Shroud, blending innovative design and remarkable performance.