The Angstadt Arms Stripped Pistol Caliber Upper Receiver (brand part no. AA0940URBA) gives AR-15 pistol caliber carbine builders a dedicated upper compatible with 9mm, .40 S&W, .357 SIG, .45 ACP, and 10mm, letting a single receiver adapt across multiple pistol calibers as a build evolves. It ships stripped, ready for a builder to add their own bolt carrier group and barrel. Angstadt Arms is known specifically for pistol caliber carbine components built to AR-15 platform standards.

Key Specifications

• Compatible with 9mm, .40 S&W, .357 SIG, .45 ACP, and 10mm pistol calibers.
• Sold stripped, ready for a builder’s own bolt carrier group and barrel.
• Built specifically for AR-15 pistol caliber carbine platforms.
• Weighs approximately 0.645 lbs as a bare stripped upper receiver.

Frequently Asked Questions

What calibers is this upper compatible with? 9mm, .40 S&W, .357 SIG, .45 ACP, and 10mm.

Does this upper come complete or stripped? It ships stripped, ready for a builder to install their own bolt carrier group and barrel.

Buy the Angstadt Arms Stripped Pistol Caliber Upper Receiver

Order the Angstadt Arms Stripped Upper from our Lubbock, Texas gun shop for fast, insured shipping to your FFL. It’s a multi-caliber-ready foundation for a dedicated pistol caliber carbine build. Browse more of our AR-15 parts selection while you shop.