Aero Precision AR-15 XL Assembled Upper Receiver – Mil-Spec, Forward Assist & Port Door Installed, 7075-T6 Aluminum, Black Anodized

Build smarter and faster with the Aero Precision AR-15 XL Assembled Upper Receiver. Precision-machined from 7075-T6 forged aluminum, this upper comes fully assembled with a forward assist and ejection port cover pre-installed, saving you time and effort during your build.

This XL version features improved wall thickness for added durability while maintaining compatibility with all mil-spec AR-15 components. Finished in Type III Class 2 hardcoat anodizing, it delivers long-lasting wear resistance and a professional matte black finish.

Aero Precision AR-15 XL Assembled Upper Receiver, Black

The Aero Precision XL Upper is forged from 7075-T6 aluminum and features an enlarged ejection port, the XL Upper Receiver is your best choice when you’re planning a build to send big rounds down range. Features- Port door opening enlarged to enhance larger diameter brass ejection (.450 Bushmaster, .458 SOCOM, .50 Beowulf, etc.), laser marked “XL” designation on the upper receiver tang, .250 takedown pin holes and laser engraved t-markings. Compatible with AR15 Lower receivers, AR15 Port Doors and Forward Assists. Works with standard AR15/M16 components. Includes port door and forward assist.

The AR15 Stripped Upper Receiver is one of our most popular products. Forged from 7075-T6 aluminum, this stripped upper is precision machined to mil-spec M16/M4 specifications. Match this upper with one of our AR15 lower receivers for a solid and dependable fit. XL model has a larger door port to allow usage for 5.56 builds or all additional AR15 platform calibers to include the larger .458 SOCOM and other similar rounds  (.450 Bushmaster, .50 Beowulf, etc) WITHOUT needing  port door size enlargement modification!

⚙️ Key Features:

• Receiver Type: Assembled Upper Receiver

• Caliber Compatibility: Multi-Cal (.223/5.56, .300 BLK, 6.5 Grendel, etc.)

• Material: 7075-T6 Forged Aluminum – Aircraft-grade strength

• Finish: Mil-Spec Type III Class 2 Hardcoat Anodized – Matte black

• Components Installed:
  • Forward Assist
  • Ejection Port Cover

• Top Rail: Flat-Top Picatinny – Optics-ready

• Feed Ramps: M4 Feed Ramp Cuts

• Compatibility: Fits all standard mil-spec AR-15 lowers

• Made in the USA

The Aero XL Assembled Upper is ideal for shooters looking to streamline their next build without compromising strength, precision, or compatibility.

FAQ:

Q: What is the difference between a stripped and an assembled upper?
A: This assembled upper includes the forward assist and port door pre-installed, whereas a stripped upper comes without any of those components.

Q: Is this compatible with any AR-15 lower?
A: Yes — this upper is mil-spec and fits all standard AR-15 lower receivers.

Q: Can I use this for any AR-15 caliber?
A: Absolutely — it’s compatible with all standard AR-15 calibers like .223/5.56, .300 Blackout, and more.

Also Available:

Radian Model 1 Complete AR-15 Upper – 10.5″ .223 Wylde Threaded Barrel, Black Cerakote, M-LOK, Includes BCG & Raptor Charging Handle

Del-Ton Complete AR-15 Upper Receiver – .223/5.56 NATO, 16″ Heavy Barrel, Flat Top, A2 Flash Hider, Mil-Spec Forged Upper

Angstadt Arms UDP-9 Complete Upper – 9mm, 6 Barrel, Threaded, Includes 9mm BCG & Charging Handle, Black Finish

Faxon ARAK-21 Complete Upper – 5.56 NATO, 16″ Barrel, Monolithic Billet Upper, Ambidextrous Ejection, Bolt Carrier Assembly Included