- Series/Collection: M16A1 Retro Reissue
- Action: Semi-Automatic, Gas Operated
- Stock Type: A2 Fixed
- Trigger Type: Single-Stage
- Muzzle Type: Muzzle Brake
- Magazine Capacity: 20+1
- Caliber/Gauge: 5.56x45mm NATO
- Twist Rate: 1:12"
- Orientation: Right
- Safety: Safety Selector
- Sight: A1 Fixed Front and Rear
- Barrel Material: 4150 Chrome Molybdenum Vanadium Steel
- Receiver Material: Aluminum
- Stock Material: Synthetic
- Barrel Finish: Manganese Phosphate
- Stock Finish: Black
- Barrel Length: 20"
- Overall Length: 30.4"
Colt's M16 Retro Reissue is a gas-operated, semi-automatic M16A1 with a 20" barrel and is chambered in 5.56 NATO. It has classic A2-styling with the fixed synthetic stock, A2 carry handle receiver, smooth rifle-length handguard, and A2 front sight. It includes sling swivels and a 20-round magazine.