AM Upper Receiver AR15 A3 Assembled with Charging Handle - Premium Quality, Ready-to-Install

The Anderson Manufacturing AM Upper Receiver AR15 A3 is a complete, ready-to-install upper assembly built for AR-15 builders who want a solid foundation without the hassle of sourcing and fitting individual components. Machined from 7075 T6 aluminum forgings and finished in Type 3 hard-anodized black, this upper comes assembled with the dust cover, forward assist, and charging handle already installed—so you can move straight to mating it with your lower receiver. With M4 feed ramps and mil-spec machining, it's engineered to handle the full range of standard AR-15 calibers.

Whether you're assembling your first AR or building a second upper for a different cartridge, a pre-assembled receiver speeds up the process and removes one major point of potential fit issues. The 7075 T6 aluminum is lightweight and robust, and the Type 3 hard-coat anodize holds up to field use and regular cleaning without wearing through. This is the kind of no-frills, purpose-built component you'd expect from Anderson Manufacturing—proven durability without unnecessary cost.

Compatibility across standard AR-15 cartridries (with the exception of .458 SOCOM, which requires a specialized upper) means you can source bolts and barrels for the caliber you're planning to run, then drop this upper onto a compatible lower. It's a straightforward, repeatable platform that's backed decades of AR building and shooting.

Key Features

• Fully assembled with charging handle, dust cover, and forward assist installed
• Machined from 7075 T6 aluminum forgings for lightweight strength
• Type 3 hard-anodized black finish resists wear and corrosion
• M4 feed ramps for reliable case feeding
• Mil-spec machining and tolerances
• Compatible with standard AR-15 calibers

Specifications

Frequently Asked Questions

What AR-15 calibers will this upper work with?

This upper receiver is compatible with all standard AR-15 calibers except .458 SOCOM, which requires a dedicated upper receiver.

Do I need to install the charging handle and forward assist myself?

No. The charging handle, dust cover, and forward assist come fully installed and ready to use. You just need to pair it with a compatible lower receiver.

What do I need to complete this upper into a functional upper assembly?

You'll need a bolt carrier group, barrel, and gas tube/block system matched to your intended caliber. Pair this assembled upper with an AR-15 lower receiver to create a complete rifle.

Is this upper receiver mil-spec?

Yes, it's machined to military specifications and standards, ensuring reliable fit and function across quality AR-15 components and builds.