Check the listing for details. 2.1" Short Version Muzzle Brake 5/8x24 TPI for .308. Color: Black, Condition: New. Listed at 21.99 USD. Black Oxide Finish, solid precision machined construction. The Model .308 muzzle brake will reduce recoil & climb which will improve shooting and control. The .308 competition muzzle brake redirects propellant gasses and reduces recoil and flash dramatically. Wraps around your threaded barrel and threads on 5/8"x24 pitch. CNC Machined High Quality SteelHeat TreatedCompetition Muzzle BrakeSide Ported And Ported On TopSolid Machined ConstructionBlack Oxide FinishReduced Back Pressure5/8"x24 PitchShort Size Version , 2.16 inch longWeight: 3.3 ozOutside Diameter : 0.9"Included Crush washer and Jam Nut SHIPPING: **FREE SHIPPING**Shipped USA domestic only! No international shipping!All orders will be shipped within 1 business days after the payment is cleared.The tracking number will be sent email to you.USPS First Class Shipping Service: 2-5 Business DaysRETURNS:30-day no questions asked return policy. Return items must be returned in new condition with all original parts and packaging.Free Return Shipping.We have 100% satisfactory guarantee. Our goal is to keep our customers beyond statisfied. If you are not satisfied with your purchase, or if by any chance you do receive a defective item please contact us and we will help to resolve your problem.All products are guaranteed for two year.