Heavy-duty forged AR15/M4 upper receiver — precision machined for reliable alignment, rugged service use, and full Mil-Spec compatibility.
The WORKHORSE® AR15/M4 Forged Upper Receiver provides a robust, service-grade platform for duty, competition, or hard-use builds. Forged 7075-T6 construction combined with tight CNC tolerances delivers exceptional strength and repeatability for demanding environments. Designed to accept standard AR15/M4 barrels, handguards, and accessories for straightforward assembly and long-term reliability.
Key Features
- Forged from 7075-T6 aircraft-grade aluminum for proven strength and durability
- Precision CNC machined to Mil-Spec dimensions for repeatable upper/lower alignment
- Full-length M1913 Picatinny top rail for optics and iron-sight backup
- Optimized ejection port and feed-ramp interfaces for reliable cycling
- Reinforced barrel extension interface for secure headspacing and alignment
- Prepped for standard charging handle and forward assist (where applicable)
- Type III hard anodize or bead-blast finish options (select in product variants)
Specifications
- Model: WORKHORSE® AR15/M4 Forged Upper Receiver
- Material: 7075-T6 Forged Aluminum
- Finish: Type III Hard Anodize / Bead-blast (select in variants)
- Rail: Full-length M1913 Picatinny top rail
- Compatibility: Standard AR15/M4 pattern — accepts Mil-Spec barrels, handguards, and charging handles
- Features: Ejection port, feed-ramp optimized interfaces, forward assist provision (where applicable)
- Weight: Forged design (varies by configuration)
- Country of Origin: USA (replace if needed)
- SKU: WHS-UPR-FRG-SKU (replace)
Why Choose WORKHORSE
- Durability: Forged construction resists deformation and handles repeated removals/installs.
- Fit & Repeatability: Tight tolerances reduce play between upper and lower receivers.
- Service Ready: Designed for heavy use with reinforced interfaces and reliable geometry.
- Flexible Options: Available finish and feature variants to suit tactical or show builds.
COMPATIBILITY & FITMENT
Designed to accept standard Mil-Spec AR-15 components (barrels, BCGs, buttstocks, grips). For AR pistol or SBR builds consult a qualified gunsmith and ensure compliance with NFA rules where applicable.
