This is a FMK Firearms Stripped Lower Receiver known as the AR-15 chambered in 223 Remington, model FMKGAR1E.
This state of the art polymer allows for superior strength" unmatched durability and is extremely lightweight at only 4.3oz. The AR1 extreme is by far the strongest composite polymer lower on the market today.
Features:
Superior Strength
Unmatched Durability
Extremely Lightweight
Custom Engraving
