Colt M4 Carbine Built Lower Receiver Assembly (Match Target, .223 Marked)
This Colt M4 Carbine built lower receiver is an AR-pattern lower assembly with the receiver extension/buffer tube installed. A collapsible stock is included (shown separate) but not attached in the photos. The receiver is marked “Match Target M4 Carbine” and “CAL .223,” with Colt rollmarks on the magazine well.
Controls and lower parts are installed, including the safety selector, bolt catch, magazine release, trigger, and takedown/pivot pins.