Franklin Armory BFSIII-M4 Midlength Rifle 5.56 NATO 16 inch

About this product

The Franklin Armory BFSIII-M4 is a semi-automatic AR-style rifle built around a midlength gas system and a 16 inch LTW contour barrel. It is chambered in 5.56 NATO and equipped with Franklin Armory’s BFSIII binary trigger to provide selectable fire control options. The 15 inch FST handguard, optic-ready upper, M4 stock, and A2 grip make this rifle suitable for range work, competition, and general-purpose shooting.

Key Specifications

• The rifle is chambered in 5.56 NATO.
• The barrel is a 16 inch LTW contour.
• The gas system is midlength.
• The handguard/upper is a 15 inch FST.
• The twist rate is 1:7.
• The trigger is a BFSIII binary trigger.
• The bolt carrier is salt bath nitride.
• The lower is a FAI-15 and the receiver construction is aluminum upper and lower.
• The capacity is 30 + 1.
• The stock and grip are a M4 polymer stock and an A2 grip.

With its midlength gas system, controllable 16 inch barrel, and the BFSIII trigger package, the BFSIII-M4 offers a balanced platform for shooters who value modularity and practical performance. The optic-ready upper and full-featured furniture provide a ready baseline for customization, making this rifle a capable option for informed shooters pursuing range work, competition, or general-purpose AR applications.