- Upper Receiver
- A2 Fixed Front Sight
- 223 Rem/556NATO
The durability”” reliability and excellent build quality of Colt uppers will provide years of service you can count on.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.