The Battle Arms Authority Elite 16 Inch 5.56 Complete Upper, Ambi, Black (Battle Arms Development part number BAD-AUTH-UR16B-Y-15) is built around a billet BAD556 7075-T6 aircraft-grade aluminum receiver with integral ambidextrous controls. Battle Arms Development pairs that receiver with a free-float rail handguard carrying M-LOK attachment points at the 3, 6, and 9 o’clock positions, plus a full-length Picatinny rail at 12 o’clock with the signature notch cut that matches the upper receiver. The Authority Elite ships with a 16-inch, 4150 chrome-moly steel barrel in a black nitride finish for durability and accuracy, individually head-spaced to a matching 9310 steel bolt and 8620 black nitride carrier. At 16 inches, the barrel clears the federal rifle-length minimum, and this upper does not include a lower receiver.

Key Specifications

• Chambered in .223 Remington/5.56 NATO.
• Barrel measures 16 inches, part of the Authority Elite line.
• Receiver is machined from billet BAD556 7075-T6 aluminum with integral ambidextrous controls.
• Barrel is 4150 chrome-moly steel with a black nitride finish.
• Includes a matched 9310 steel bolt and 8620 black nitride carrier.
• The barrel is individually head-spaced to its matched bolt for tight, reliable tolerances.
• Free-float handguard offers M-LOK attachment at 3, 6, and 9 o’clock.
• Includes a full-length Picatinny rail at 12 o’clock with a signature notch cut matching the upper receiver.
• Classified as an Upper, sold without a lower receiver.

Frequently Asked Questions

Does this upper come with a bolt carrier group? Yes, it includes a matched 9310 steel bolt and 8620 black nitride carrier, individually head-spaced to the barrel.

Does this upper require any special paperwork? No, at 16 inches the barrel clears the federal rifle-length minimum, and the upper ships without a lower receiver.

Buy the Battle Arms Authority Elite 16 Inch Upper

Complete your AR-15 build with the Battle Arms Authority Elite, a billet ambi upper ready to run. Order it from our Battle Arms Development lineup of AR15 uppers and our Lubbock, Texas team will get it shipped out quickly.