ASK AN EXPERTDescription
- Designed to work with COP monolithic upper receiver
- Will not work with a standard upper receiver
- Platform: AR-15
- Weight: 1.2oz
The AERO PRECISION M4E1/C.O.P. Barrel Nut is designed to work with their COP monolithic upper receiver. It will not work with a standard upper receiver.
Note: This product is already included with Aero Precision M4E1 Enhanced Upper Receiver and COP Upper Receivers. It is not necessary to be purchased separately. This individual product is available for customers who have lost or damaged their existing barrel nut.
