The Aero Precision Multi-Caliber Stripped Upper Receiver (brand part no. APAR501603C) is one of Aero’s most popular AR-15 products, forged from 7075-T6 and precision machined to mil-spec M16/M4 specifications. Aero Precision cuts M4 feedramps and .250 takedown pin holes into every receiver and laser-engraves the T-marks, then finishes it in anodized black for a solid, dependable match with any Aero AR-15 lower receiver. It ships optic-ready with no iron sights, and as a stripped receiver it requires a dust cover, forward assist, charging handle, barrel, handguard, gas block, muzzle device, gas tube, and bolt carrier group (BCG) to complete a build.

Key Specifications

• Forged from 7075-T6 aluminum.
• Precision machined to mil-spec M16/M4 specifications.
• Features M4 feedramps for reliable feeding.
• Cut with .250-inch takedown pin holes.
• Laser-engraved T-marks.
• Finished in anodized black.
• Multi-caliber compatible platform.
• Ships optic-ready, with no iron sights installed.
• Requires a dust cover, forward assist, and charging handle to complete.
• Also requires a barrel, handguard, gas block, gas tube, muzzle device, and BCG to complete.

Frequently Asked Questions

Does this receiver include a bolt carrier group? No, it ships stripped and requires a BCG along with a barrel, handguard, and other components to complete.

What material is this receiver made from? Forged 7075-T6 aluminum, machined to mil-spec M16/M4 specifications.

Does it pair with any AR-15 lower? Yes, it is designed for a solid, dependable fit with Aero AR-15 lower receivers.

Buy the Aero Precision Multi-Caliber Stripped Upper Receiver

Start your build with one of Aero’s most popular, mil-spec-machined uppers. Order it from our AR15 uppers selection at our Lubbock, Texas gun shop, and our team will have it ready as soon as it’s available to ship.