Battle Arms Development Authority Elite 556 Upper Receiver

Battle Arms Development Authority Elite Upper Receiver

The Authority Elite represents a complete, ready-to-fire upper receiver solution built on proven engineering principles. This is a serious rifle component for shooters who demand reliability and precision.

Construction & Materials

The foundation is a billet-machined receiver from 7075-T6 aircraft-grade aluminum, featuring integral ambidextrous controls for both left and right-handed shooters. The barrel is 4150 chrome-moly steel with black nitride finish—a combination proven to deliver both durability and accuracy over thousands of rounds.

Accuracy & Reliability

Each barrel is individually head-spaced and paired with a matching 9310 steel bolt and 8620 black nitride carrier. This attention to detail ensures reliable feeding, firing, and extraction while simplifying maintenance and cleaning.

Handguard & Accessory Rail

The free-float M-Lok handguard eliminates contact with the barrel, preserving accuracy potential. M-Lok attachment points are positioned at 3, 6, and 9 o'clock for mounting lights, grips, and other tactical accessories. A full-length Picatinny rail runs along the top with Battle Arms Development's signature notch cut, providing a solid mounting surface for optics and sights.

What's Included

You receive the complete upper receiver assembly with the BAD Rack-15 ambidextrous charging handle and bolt carrier group—everything needed to complete your AR-15 build.