Battle Arms Development WORKHORSE 16″ Upper | 5.56 NATO

The Battle Arms Development WORKHORSE complete upper is built around a forged 7075-T6 aircraft-grade aluminum receiver and a free-float rail handguard with M-LOK attachment points. Every upper ships with a 4150 chrome-moly steel black nitride barrel that is individually head-spaced to match the supplied bolt and carrier. The package includes an ambidextrous charging handle and a bolt carrier group for immediate installation on an AR-15 lower.

Product Specifications

• This upper fits the AR-15 platform.
• The model is designated WORKHORSE.
• The finish color is Black.
• Chambering is .223 Rem / 5.56 NATO.
• The barrel length is 16″.
• The receiver is forged 7075-T6 aircraft-grade aluminum.
• The handguard is a free-float rail with M-LOK attachment points at 3, 6, and 9 o’clock.
• A full-length Picatinny accessory rail is provided at the 12 o’clock position with the manufacturer’s signature notch matching the upper receiver.
• The barrel is made from 4150 chrome-moly steel with a black nitride finish.
• The bolt is a matching 9310 steel and the carrier is 8620 steel with black nitride.
• Included accessories are Bad Rack-15 Charging Handle and an AR15/M16 Bolt Carrier Group.
• Compatibility subgroup is Complete Upper Receivers.
• Product type is listed as Upper.
• UPC: 810033786150.

The WORKHORSE upper is intended for shooters who want a robust, serviceable AR-15 upper for range work and competition. Its forged receiver, full-length rail, and matched bolt/carrier set make it a practical choice where durability and straightforward maintenance matter. If you need a complete upper that installs quickly on a standard AR-15 lower, this configuration delivers a reliable platform without unnecessary extras.