Anderson Manufacturing AM-15 Stripped Lower Receiver – Open – BLEM – D3-K067-A000

About this product

What is the Anderson Manufacturing AM-15 Stripped Lower Receiver BLEM? It is a forged 7075-T6 aluminum lower receiver with minor cosmetic blemishes that has zero impact on structural integrity or function, designed as the foundational component for a custom AR-15 build. This lower is manufactured to military specifications, ensuring compatibility with virtually all mil-spec AR-15 components. At $39.99, it represents one of the most cost-effective entry points for building a functional rifle without sacrificing critical dimensional precision.

What is the Anderson Manufacturing AM-15 Stripped Lower Receiver used for?

This receiver is used as the serialized, legally defined "firearm" foundation for building a complete AR-15 rifle or pistol. You will install your own trigger assembly, pistol grip, buffer tube, stock, and upper receiver to create a functioning weapon. It is ideal for first-time builders due to its straightforward design, or for experienced shooters creating a dedicated beater rifle for high-round-count training where pristine finish doesn't matter.

How does the Anderson Manufacturing AM-15 compare to an Aero Precision M4E1 lower?

The Anderson AM-15 is a better choice when your priority is absolute minimum cost for a functional forged lower, while the Aero Precision M4E1 is superior for builders seeking enhanced features and easier assembly. The M4E1 integrates a threaded bolt catch roll pin and a tensioning screw for upper fitment, features absent on this basic Anderson unit. However, the Anderson achieves the same core task—housing a fire control group—at nearly half the price of a non-blemished M4E1, making it the definitive budget champion.

What does it weigh and what are the dimensions?

The stripped lower receiver weighs 8.5 ounces (241 grams) and its critical dimensions are precisely machined to military specifications. The main body measures 7.6 inches in length from the rear of the buffer tube thread to the front takedown pin lug, with a width of 1.7 inches across the magazine well. The fire control pocket is sized to accept standard AR-15 trigger groups, like our Glock-Mod V3 Trigger Shoe Kit, without modification.

Who is this NOT for?

This BLEM lower is not for the collector seeking a showpiece rifle with a flawless ano finish. If visible scratches, minor tool marks, or slight color variations in the anodizing will ruin your build's aesthetic, pay more for a premium receiver. It is also not for builders who require integrated QD sling points, flared magazine wells, or other advanced machining features found on higher-end models like those from VLTOR or ADM.

What's in the box?

You receive exactly one stripped Anderson AM-15 lower receiver. No pins, springs, detents, or installation tools are included, which is standard for a stripped receiver. The lower will have its serial number engraved on the left side above the trigger guard and will be packaged in a simple plastic bag or clamshell with desiccant. Ensure you have a lower parts kit and appropriate tools before starting your build.

Is the Anderson AM-15 BLEM lower worth it at $39.99?

Absolutely, if your goal is a functional rifle on the tightest possible budget. For less than the cost of two boxes of quality 5.56 ammunition, you secure the legally controlled part of your build. The savings on the blemish directly fund better components where performance actually matters, like your barrel or a quality optic. It's the smart, no-bullshit choice for a working gun, not a safe queen.