The 2A Armament Builder Series AR-15 Aluminum Castle Nut will help put your rifle on a diet with weight savings over a normal steel Mil-Spec castle nut. The unique machine work on the 2A Armament Aluminum Castle Nut enhances the appearance as well as reduces the weight. Machined from 6061-T6 aluminum to be light weight but strong enough to secure a buffer tube in place. Finished with Type III Class 2 hardcoat anodized black.
- Lightweight machined 6061-T6 aluminum
- Type III Class 2 Hardcoat Anodized Finish Black
- Weight: .2 oz