• Torque the brake to 15-20 ft-lbs. - no crush washers are required
  • "This brake is compatible with AR-556® rifles and other .223 Rem / 5.56 NATO caliber firearms with ½"-28 muzzle threads"
  • "Dimensions: 1-3/4" length, .75" diameter"
  • Weight: 1.7 ounces
  • Made in the USA by Swan Manufacturing.

Full details and secure checkout: https://3crtactical.com/ruger-223rem-radial-prt-muzzle-brake/?utm_source=armslist&utm_medium=referral&utm_campaign=listing