The Angstadt Arms Complete 9mm Upper Receiver (brand part no. AAUT009006) is a ready-to-run 6-inch-barreled upper assembly built with the same components used in Angstadt’s UDP-9 pistol, drops onto any 9mm AR-15 lower, and runs both Glock- and Colt-pattern magazines. Angstadt Arms pairs the 6-inch barrel with a 5.5-inch handguard and a 1:10 twist rate for reliable cycling with common 9mm loads. Among AR15 uppers, this complete upper favors builders who want a drop-in 9mm setup without sourcing individual parts.

Key Specifications

• Chambered in 9mm.
• Fitted with a 6-inch barrel.
• Paired with a 5.5-inch handguard.
• Rifled with a 1:10 twist rate.
• Compatible with Glock-pattern and Colt-pattern 9mm magazines.
• Fits any 9mm AR-15-dedicated lower receiver.
• Built with the same components used in Angstadt’s UDP-9 pistol.
• Weighs approximately 2.87 pounds.

Frequently Asked Questions

What magazines does this upper run? Both Glock-pattern and Colt-pattern 9mm AR magazines.

Does this include a lower receiver? No, it’s a complete upper assembly meant to pair with any 9mm-dedicated AR-15 lower.

Is this ready to run out of the box? Yes, it’s built with the same components as Angstadt’s UDP-9 pistol and is ready to run once mated to a compatible lower.

Buy the Angstadt Arms Complete 9mm Upper

A drop-in, ready-to-run 9mm upper is exactly what this Angstadt Arms assembly delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping.