RIFLE: COLT FIREARMS MODEL AR-15 A4, SERIAL NUMBER CAR035262, BLACK (MATTE), CASE NOT INCLUDED, 21 IN, 5.56MM, SEMI - AUTOMATIC Notes: The Colt AR-15 A4 is a semi-automatic rifle chambered in 5.56 NATO / .223 Remington, based on the military-style M16A4 configuration. Designed with traditional AR-platform features, the A4 model combines a fixed stock, detachable carry handle, and full-length rifle configuration for a classic setup. Known for Colt's manufacturing heritage and reliability, the AR-15 A4 is well suited for recreational shooting, training, target practice, and sporting applications. Features: Manufacturer: Colt Firearms Model: AR-15 A4 Caliber: 5.56 NATO / .223 Remington Semi-automatic action AR-15 pattern rifle configuration 20-inch barrel (model dependent) Direct impingement gas system Forged aluminum upper and lower receivers Fixed rifle stock Detachable carry handle with rear sight Front sight post Picatinny rail system A2-style pistol grip Detachable magazine Accepts standard AR-15 pattern magazines Threaded barrel Compatible with a wide range of AR-15 accessories Black finish Classic military-style rifle configuration