AM Upper Receiver for AR-15, .223 Rem/5.56 NATO, 20" Barrel - No BCG or Charging Handle

The Anderson Manufacturing AR-15 upper receiver is a complete, ready-to-assemble upper for builders who want a no-frills, dependable platform without paying for extras they don't need. This .223 Rem/5.56 NATO upper ships with a 20-inch heavy barrel, M4 extension, gas block, and A2 flash hider—everything you need to pair with a lower receiver and complete your build, except the bolt carrier group and charging handle.

The 20" HBAR (heavy barrel) is precision-manufactured from 4140 chrome moly steel and certified to gun-barrel standards, meaning you're getting the same material spec as costlier brands. The heavy profile adds rigidity and heat capacity, which translates to consistent accuracy across sustained shooting strings at the range or in the field. Anderson's parkerized finish provides a reliable corrosion-resistant layer that looks authentically military-grade without the polished-nickel premium.

This is an honest choice for AR builders on a budget: the forged upper receiver and standard plastic handguards keep cost down without sacrificing core function. Whether you're assembling a shooter for the range, hunting, or tactical training, the Anderson upper gives you the essentials in a proven caliber. The gas hole is already drilled and ready—just add your BCG, charging handle, and lower, and you're running.

Key Features

• 20-inch heavy barrel (4140 chrome moly steel) for rigidity and sustained accuracy
• M4 barrel extension compatible with standard AR platforms
• Gas block and A2 flash hider included and pre-installed
• Forged upper receiver for strength
• Parkerized finish for corrosion resistance
• Chambered in .223 Rem/5.56 NATO
• Does not include bolt carrier group or charging handle

Specifications

Frequently Asked Questions

What do I need to complete this upper receiver?

You'll need a lower receiver, a bolt carrier group (BCG), and a charging handle to complete the AR-15. The upper itself comes ready to install on any standard AR-15 lower receiver.

Is the 20-inch barrel good for hunting and range shooting?

The 20-inch heavy barrel is well-suited for both. The added mass provides consistency and helps manage recoil. In .223 Rem/5.56 NATO, it delivers the velocity and accuracy expected from the caliber and is suitable for both target shooting and hunting applications where .223 is legal.

What caliber is this upper chambered in?

This upper is chambered in .223 Rem/5.56 NATO, a dual-rated caliber commonly used in AR-15 platforms. Both cartridges are interchangeable in this chamber.

Does the upper come with a charging handle and bolt carrier group?

No. This upper does not include a bolt carrier group or charging handle. You will need to purchase these components separately to complete your build.