The Franklin Armory BFSIII M4 Built Lower Receiver is a versatile, high-quality AR-15 lower receiver designed for those seeking performance and customization options. Made from forged 7075-T6 aluminum with a hard coat anodized finish, this lower receiver ensures durability and corrosion resistance for long-lasting use. It features a Binary Firing System (BFSIII) trigger, enabling semi-auto or binary firing modes, which is ideal for increased shooting speed and precision.

Equipped with an A2 stock and grip and a specialized tension screw, this lower receiver offers a solid, stable platform with reduced play between the upper and lower receivers. It’s compatible with multi-caliber setups, providing flexibility for various builds. This model includes one 30-round magazine and offers a 30+1 capacity when fully loaded.

With its binary trigger and forged construction, the Franklin Armory BFSIII M4 Built Lower Receiver is perfect for AR enthusiasts and tactical shooters looking to enhance their rifle’s performance with faster firing capabilities and robust design.