Arm or Ally AR-15 XL Stripped Upper Receiver – Anodized Black
Manufactured in the USA
The Arm or Ally AR-15 XL Stripped Upper Receiver – Anodized Black is engineered for big bore performance. Forged from durable 7075-T6 aluminum, this XL upper receiver features an enlarged ejection port, making it the perfect fit for calibers like .450 Bushmaster, .458 SOCOM, and .50 Beowulf®. Whether you’re planning a powerful hunting rig or a heavy-duty defensive build, this upper is purpose-built for reliable cycling with large-diameter cartridges.
This upper is precision machined to M4 spec and includes M4 feed ramps to promote smooth feeding. It also features a laser-marked “XL” designation on the tang and laser-engraved T-markings along the top Picatinny rail for consistent optics mounting. Designed to work with standard AR-15 lower receivers, port doors, and forward assists, it’s fully compatible with a wide range of mil-spec parts and accessories.
The hardcoat anodized black finish offers excellent wear and corrosion resistance, maintaining durability and aesthetics through years of use. Builders looking for a dependable upper to support serious stopping power will appreciate the functional enhancements and rugged American-made quality.
Features:
- Forged 7075-T6 aluminum construction
- Hardcoat anodized black finish
- Enlarged ejection port for big bore calibers
- Compatible with .450 Bushmaster, .458 SOCOM, and .50 Beowulf®
- M4 feed ramps for reliable feeding
- Laser-marked “XL” on receiver tang
- .250 takedown pin holes
- Laser engraved T-markings for consistent optics placement
- Compatible with standard AR-15 lowers, port doors, and forward assists
- Made in the USA
Product Information
| Manufacturer | Leading U.S. Manufacturer |
|---|---|
| Platform | AR15 |
| Color | Black |
| Finish | Anodized |
| Material | 7075-T6 Aluminum |
| Compatibility | Standard AR15 components |
| Made in USA | Yes |
| Weight | 8.35oz |


