The Franklin Armory BFSIII-M4 is a semi-automatic AR-15-pattern rifle configured with a 16-inch mid-length barrel and a collapsible synthetic stock. Chambered for both .223 Remington and 5.56 NATO, it combines a practical carbine format with Franklin Armory’s BFSIII binary trigger, which is designed to fire one round when the trigger is pulled and another when it is released. The flat-top receiver and Picatinny rail provide a flexible foundation for adding an optic, while the threaded muzzle supports compatible muzzle devices. A 30-round magazine capacity makes this rifle well suited to range use and general carbine applications.

Key features

• BFSIII binary trigger provides a selectable binary firing mode in addition to conventional operation
• 16-inch mid-length barrel balances handling with practical sight radius and velocity
• Chambered for .223 Remington and 5.56 NATO ammunition
• Collapsible synthetic stock allows the rifle to be adjusted for different users and storage conditions
• Optic-ready flat-top receiver with Picatinny rail supports a broad range of sighting systems
• Threaded 1/2x28 muzzle accepts compatible muzzle devices and suppressor mounts

The Franklin Armory BFSIII-M4 delivers a configurable AR-15 rifle platform with a mid-length gas system and BFSIII binary trigger for versatile range use.