BCM AR-15 Pistol Lower Receiver, .223 Rem/5.56 NATO

Description

The BCM LRG-PISTOL is a complete AR-15 pistol lower receiver built for shooters who want a factory-assembled pistol lower from a manufacturer with a serious track record in military and professional markets. It ships as a finished group with receiver extension and BCMGUNFIGHTER Pistol Grip already installed, which means you are buying a coordinated assembly rather than sourcing and fitting individual components yourself — a meaningful difference when tolerances and fit matter to you.

The receiver body is machined from 7075-T6 aluminum, an alloy chosen for its strength-to-weight ratio. At the hardness levels this grade reaches, it resists deformation under the stress cycles that accumulate in a semi-automatic platform during sustained use, while keeping weight low enough that the pistol configuration remains practical to handle. The hardcoat anodized finish — applied to MIL-A-8625F Type III, Class 2 specification — is not a painted-on layer but an electrochemical conversion of the aluminum surface itself, which is why it holds up to holster wear, contact abrasion, and moisture without flaking or peeling the way applied coatings can.

Because this is a complete lower rather than a stripped receiver, it pairs directly with any mil-spec AR-15 upper in .223 Rem or 5.56 NATO. The pistol receiver extension that comes installed sets the geometry for a pistol-configured build rather than a rifle stock, so the parts relationship is correct from the start. If you are assembling a compact AR pistol and want a lower built to consistent specifications throughout, this is a straightforward foundation to build from.

Shipping and availability: This item cannot be shipped directly to California. It cannot be sold into Illinois. Check your state and local requirements before ordering. This item must ship to a licensed FFL dealer for transfer.