Check the listing for details. Competition Muzzle Brake 5/8"x24 TPI For .308/.300BLK + Washer + Jam Nut. Color: Black, Condition: New. Listed at 21.99 USD. CNC precision machined Brand New design, High quality steel, heat treated .308/.300BLK Competition Muzzle Brake 5/8x24 TPI Thread Crush Washer and Jam Nut Included Material: Steel Color: Black Oxide finish Items Included One Steel Muzzle Brake One Steel Crush Washer One Steel jam nut Weight: 4 oz 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.