BAD WORKHORSE 10.5 Upper | .223 Rem/5.56 NATO

The BAD WORKHORSE complete upper receiver is a purpose-built AR-15 upper assembled on a forged WORKHORSE 7075-T6 aluminum receiver and a free-float M-LOK handguard. It uses a 4150 chrome-moly steel barrel finished in black nitride and is paired with a matching 9310 steel bolt and 8620 steel carrier with black nitride finish for durability and ease of maintenance. The assembly includes ambidextrous controls and accessories intended for general carbine-range shooting and professional training applications.

Product Specifications

• The product is a complete upper configured for the AR-15 platform.
• The receiver is forged from 7075-T6 aircraft-grade aluminum.
• The barrel measures 10.5 inches in length.
• The barrel is made from 4150 chrome-moly steel with a black nitride finish.
• The handguard is a free-float design with M-LOK attachment points at 3, 6, and 9 o’clock.
• A full-length Picatinny accessory rail runs at 12 o’clock with a signature notch cut to match the upper receiver.
• The bolt is manufactured from 9310 steel and the carrier is 8620 steel with a black nitride finish.
• The assembly includes a Bad Rack-15 charging handle and an AR15/M16 bolt carrier group.
• The unit is finished in Black.
• The model designation is WORKHORSE.
• The product type is Upper.
• The subcategory is Complete Upper Receivers.
• The caliber/chambering is .223 Rem/5.56 NATO.
• The item description notes M-LOK compatibility on the handguard.
• The UPC is 810033786112.

Engineered for consistent performance in carbine-length range work and professional training, this WORKHORSE upper pairs durable materials with practical accessory integration. Its free-float M-LOK handguard and full-length top rail make it straightforward to mount optics and ancillary equipment while the nitride-treated barrel and carrier group simplify maintenance and durability over time.