Aero Precision Aero Precision M4E1 / COP Barrel Nut This barrel nut is designed to work with Aero Precision's COP monolithic upper receiver. It will not work with a standard upper receiver.*Note: This product is already included with Aero Precision's M4E1 Enhanced Upper Receiver and COP Upper Receivers... Retail: $30.00 Was: Now: $26.99 Add to Cart
2A Armament 2A Armament AR15 Aluminum Barrel Nut For those that are looking to cut as much weight as possible from their custom build, this is a simple weight saving component for the AR15 BL rails . The 2A Armament aluminum barrel nut is produced with 7075-T6 aluminum then anodized... Retail: $29.00 Was: Now: $27.00 Out of stock
