Battle Arms Development Workhorse 10.5 Upper AR-15 5.56 Ambi M-LOK

The Battle Arms Development WORKHORSE complete upper receiver delivers rugged reliability in a compact 10.5" 5.56x45mm NATO platform designed for AR-15 platforms, featuring an anodized black finish and an M-LOK handguard for flexible accessory mounting. This upper combines precision manufacturing with smart ergonomics, providing a ready-to-use upper that includes a Bad Rack-15 C ambidextrous charging handle and AR15/M16 bolt carrier group for streamlined setup and installation. The 10.5" barrel size offers a balanced blend of maneuverability and performance, making it an ideal choice for close-quarters engagements, range training, and versatile field use where compact rifles excel. Its AR-15 compatibility ensures straightforward integration with standard components while the robust 556NATO chambering supports reliable cycle rates and consistent accuracy across shooting conditions. The Workhorse upper's anodized finish delivers durable wear resistance and a sleek black appearance that complements a variety of builds and coatings. Whether upgrading an existing rifle or building a compact carbine, this upper provides a complete, battle-tested solution with clean tolerances, secure fit, and dependable performance from the moment you bolt it on.