AR-15/M4 Flash Hider and Muzzle Brake Crush Washers - 3 pack.
Crush Washer for neat fitting of muzzle brake / compensator to AR-15 or other 5.56 / .223 rifles, carbines or pistols utilising standard 1/2" x 28 thread.
• Includes 3 each Crush Washers in the packaging
• This allows you to properly time your muzzle brakes, compensators and flash hiders on your barrel, so that the ports are facing the correct directions for optimum performance
• Steel Construction with Black finish
• Outside Diameter: 0.75"
• Inside Diameter: 0.50"
• Individual Weight: 0.1 oz.
Model: NcStar AARCW
Last pic shows correct install orientation.