Precision machined, modern muzzle accessory for the popular K31 service rifle help improve accuracy and get you back on target quickly for fast follow-up shots. Clamps to the muzzle to eliminate drilling, pinning or threading. Redirects muzzle blast to the rear to help limit recoil to a soft push for fast follow-up shots and more comfortable shooting. SPECS: Steel, blued finish. 3” (7.6cm long), 1” (2.5cm) O.D., 4.8 oz. (136g) wt.