Battle Arms Development Workhorse 5.56 NATO Upper Receiver – 16" Ambidextrous, AR-15 Platform

The Battle Arms Development Workhorse upper receiver assembly delivers a complete 5.56 NATO solution for standard AR-15 lowers. This 16-inch configuration includes an ambidextrous charging handle for left- and right-handed shooters, making it practical for training environments or mixed-hand preference households.

Machined from 7075-T6 aluminum with a black anodized finish, this upper comes as a ready-to-install assembly. The 16-inch barrel meets federal length requirements without NFA restrictions. Installation requires standard AR-15 armorer's tools and follows mil-spec takedown pin spacing. Verify headspace and function before live fire.

• Caliber: 5.56 NATO
• Type: Complete Upper Receiver Assembly
• Compatible Lower: AR-15 / Mil-Spec
• Barrel Length: 16 inches
• Material: 7075-T6 Aluminum
• Finish: Black Anodized
• Includes: Ambidextrous Charging Handle
• Installation: Requires Headspace Check, Standard Armorer's Tools