Franklin Armory BFSIII Equipped M4 AR-15 Built Lower Receiver, 30rd

Take your AR build to the next level with the Franklin Armory M4 Complete Lower Receiver, factory-equipped with the powerful BFSIII™ Binary Firing System. This drop-in complete lower includes a 30-round magazine, standard M4-style stock, and Franklin’s legendary binary trigger, offering one round on pull and another on release for faster split times and unmatched performance.

Built to mil-spec standards, the lower is constructed from durable 7075-T6 forged aluminum, providing a rock-solid foundation for your next AR-15 upper. The BFSIII trigger is ideal for competitive shooting, training, or tactical scenarios—delivering speed while remaining compliant with ATF guidelines.

Franklin Armory M4 AR-15 Complete Lower Receiver – Equipped with BFSIII Binary Trigger | 30-Round Capacity

Take your AR build to the next level with the Franklin Armory M4 Complete Lower Receiver, factory-equipped with the BFSIII™ Binary Firing System Gen 3 trigger. This fully assembled AR-15 lower delivers faster follow-up shots with a semi and binary firing mode, offering enhanced speed and control for tactical, range, or competition use. Includes a 30-round magazine, adjustable M4-style stock, and is ready to pair with your favorite upper.

✅ Key Features for Franklin Armory BFSIII Equipped M4 AR-15 Built Lower Receiver, 30rd:

• Complete AR-15 M4-Style Lower – Preassembled and ready to pair with your upper

• Franklin Armory BFSIII Binary Trigger – Fires one round on pull and one on release

• 30-Round Magazine Included – Standard capacity for range-ready use

• 7075-T6 Forged Aluminum – Mil-spec anodized for strength and corrosion resistance

• M4 Adjustable Stock – Classic carbine-style, adjustable for comfort

• Made in the USA – Precision-built by Franklin Armory

Ideal For:

• High-speed range shooting

• Tactical training

• Competitions and recreational use

• Law enforcement (where allowed)

Perfect for: Advanced tactical setups, competition builds, and rapid-fire enthusiasts.

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