Franklin Armory Salus BFSIII Elite Binary Lower

About this product

The Franklin Armory Salus BFSIII Elite lower is a purpose-built AR lower designed for users seeking a feature-rich receiver with binary-fire capability. It is machined from 7075-T6 aluminum and finished with a hard coat anodize for durable corrosion resistance. The lower includes practical enhancements such as a flared magwell for faster reloads, ambidextrous QD sling mounts, and an ergonomic SMBI-style grip. This configuration ships with an SBM4 brace and integrates Franklin Armory’s Binary AR Elite trigger system.

Key Specifications

• The receiver is machined from 7075-T6 aluminum and finished with hard coat anodize.
• The product listing identifies the caliber as MULTI-CAL.
• The package includes a SBM4 brace as part of the lower configuration.
• The trigger system is listed as the Binary AR Elite trigger (BFSIII).
• The lower features a flared magwell for quicker magazine changes.
• The vendor notes inclusion of a Magpul 30rd PMAG as part of the assembly listing.
• The design includes ambidextrous QD sling mounts for attachment versatility.
• A specialized tension screw is listed among the lower’s features.
• Overall packaged dimensions are listed as 7.00 x 8.70 x 20.25 inches.
• The item is identified as an AR-15 accessory in the product data.

This Salus BFSIII Elite lower provides a solid foundation for a modern AR configuration where modularity and rapid reload ergonomics matter. Its aircraft-grade construction and thoughtful feature set make it suitable for builders who prioritize durable materials and integrated binary-trigger capability. The combination of a flared magwell, ergonomic grip interface, and included brace make it a practical choice for owners assembling a compact, adaptable rifle or pistol platform.