Ships to FFL
Franklin Armory BFSIII M4 Binary Trigger lower receiver is built from forged 7075-T6 aluminum and finished in Type III hardcoat anodized black for durability. Designed for M4 / AR-15 pattern setups, it integrates the Franklin Armory Binary Firing System III for rapid follow-up shots and improved control with standard AR-style controls.
Key features
- Forged 7075-T6 aluminum receiver with Type III hardcoat anodized black finish
- Built-in Franklin Armory Binary Firing System III (BFSIII) for binary trigger operation
- M4 / AR-15 pattern compatible for use with a 5.56 NATO upper
- Specialized tension screw helps eliminate upper/lower play
- M4-style carbine receiver extension compatible with a reinforced 6-position collapsible stock setup
- Supports standard AR magazines with a 30-round configuration and restricted-state options (10/20 or 10/30)
Upgrade your M4 / AR-15 pattern build with a BFSIII binary-trigger lower receiver engineered for fit, function, and hard-use durability.
Franklin Armory BFSIII M4 Binary Trigger Lower Receiver: quick facts
- What caliber is the Franklin Armory BFSIII M4 Binary Trigger Lower Receiver?
- It is chambered in 5.56 NATO.
- How many rounds does it hold?
- 30 rounds.
- What kind of action does it use?
- Double Action.
- What sights and finish does it have?
- finish: Black Hardcoat Anodize.
- Is it new or used?
- New, in the original packaging.
- Can I buy it in Iowa?
- Yes. It ships to a licensed FFL dealer in Iowa; you pick it up there after the background check. Rifles and shotguns ship to your chosen Iowa FFL dealer for the background check and pickup.
- Is it in stock?
- Yes, at $382.94. Orders leave within 1-2 business days; shipping is free over $999.
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