Description
The AR-57 is a civilian semi-automatic rifle in 5.7x28mm that accepts FN P90 magazines for a remarkable 50-round capacity, built on the familiar AR-15 lower platform. Its unique top-ejection design and blowback operation deliver reliable cycling with flat-shooting 5.7mm ammunition. A novel and fun range rifle with excellent ergonomics.
Specifications
- Manufacturer: AR-57 / CMMG
- Model: AR-57 Semi-Auto Upper Receiver Rifle (5.7x28mm)
- Caliber: 5.7x28mm
- Action: Semi-auto (straight blowback)
- Barrel Length: 16 inches
- Weight: 2.9 kg
- Capacity: 50 rounds (uses FN P90 magazine)
Shipping & FFL Transfer: All firearms ship to a licensed FFL dealer in your area. Buyer is responsible for arranging FFL transfer. Contact [email protected] with any questions.

