Description
The AR-57 is a unique American-made semi-automatic rifle that accepts FN P90 50-round magazines feeding from the top while ejecting empties through the empty magazine well below — giving it the highest-capacity standard magazine in the AR family. Chambered in the flat-shooting 5.7x28mm cartridge, it offers excellent performance for recreational shooting, competition, and home defense. 100% civilian legal and ships semi-auto only.
Specifications
- Manufacturer: AR-57 / CMMG
- Model: AR-57 PDW Semi-Auto Rifle (5.7x28mm)
- Caliber: 5.7x28mm
- Action: Semi-auto (straight blowback)
- Barrel Length: 16 inches
- Weight: 2.7 kg
- Capacity: 50 rounds (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.

