Optimize your rifle's performance with the Tiger Rock Inc. BNW*10 223/5.56 Rifle Barrel Nut Washer. This pack of 10 washers ensures a precise fit, essential for AR-15 assemblers. Made from premium stainless steel, these 0.32mm washers enhance compatibility with swivel studs, vent openings, and free float quad rails, enabling seamless adjustments for your firearm. Pack of 10 pcs. 0.32mm thickness for accurate fit Precise CNC machining for durability Sleek stainless steel finish Specifically designed for AR-15 models Upgrade your rifle assembly with these reliable washers and experience enhanced functionality today.