The Colt M4 5.56mm 20-Round Magazine is a factory-original magazine designed for reliable feeding in AR-15 and M4-pattern rifles.
- Type: AR-15/M4 Magazine
- Caliber: 5.56mm NATO / .223 Remington
- Capacity: 20 rounds
- Material: Aluminum body with anti-tilt follower
- Compatible Firearms: AR-15, M4, and STANAG-compatible rifles
- Use: Range shooting, hunting, competition, prone shooting positions
