Battle Arms Development Authority Elite Ambi Billet Receiver Set

Battle Arms Development Authority Elite Ambi Billet Receiver Set

The Battle Arms Development Authority Elite Ambi Billet Receiver Set is a high-performance foundation for building a premium AR-15. Precision CNC-machined from 7075-T6 aerospace-grade aluminum, this ambidextrous billet lower receiver set offers unmatched durability, precision fit, and cutting-edge functionality. Engineered with innovative features to support today’s modern builds, the Authority Elite receiver set blends form and function in a lightweight, aesthetically refined package.

The BAD556 lower receiver includes an integrated trigger guard, flared magwell, and built-in ambidextrous bolt and magazine releases. These enhancements support rapid reloads and superior ergonomics for both left- and right-handed shooters. Every receiver is MIL-A-8625F Type III hardcoat anodized for increased wear and corrosion resistance and finished with de-burred edges by hand for improved comfort and handling.

This receiver is compatible with all Mil-Spec AR-15 parts and offers enhancements like a bolt catch set screw, takedown pin detent spring capture, and a receiver tension screw to fine-tune upper and lower fitment. Selector markings are compatible with 90° and Battle Arms Development short-throw safety selectors, adding flexibility to your fire control setup.

Whether you’re assembling a precision rifle, competition blaster, or duty-ready platform, the Authority Elite receiver set provides an uncompromising base for your AR-15 build. Every component, material, and package is 100% made in the USA.

Specifications:

• Precision CNC from Billet 7075-T6 Aerospace Aluminum
• Patent Pending Lightweight Design
• MIL-A-8625F, Type III, Class 2, Hard Anodized Black Finish
• Compatible with TDP/Mil Standard AR Lower Receiver Parts
• Dimensional Accuracy Inspection
• All Sharp Edges De-Burred by Hand
• Pictograph Selector Markings for 90° or Short Throw Safety Selectors
• Relief Cut for BAD-ASS-ST / BAD-CASS-ST Selectors
• Multi Caliber Marking
• Flared, Deep Beveled Magwell
• Easy Install Set Screw Bolt Catch Pin (Included)
• Captured Takedown Pin Detent Spring (Set Screw Included)
• Upper/Lower Tension Screw (Included)
• Integrated Trigger Guard
• Built-in Ambi Bolt and Mag Release
• Weight: 13.78 oz
• 100% Made in the USA