BCM Complete Lower Receiver with RMS Stock Mod 3, Black (Factory Blem)

The BCM Complete Lower Receiver with RMS Stock Mod 3 in black is a factory-blemished, semi-auto AR-platform lower build kit from Bravo Company Mfg (BCM part no. BCMLRG-RMS-STK-MOD-3-BLK-COSMO). Bravo Company builds mil-spec rifle components engineered to hold up under the demands of private security professionals, law enforcement, and serious civilian shooters. This lower arrives fully assembled and ready to mate with a compatible AR upper for a fast, reliable build. The factory-blem designation means a purely cosmetic imperfection at a reduced price, with mil-spec fit and function fully intact. It’s a smart foundation for a home-defense carbine, range rifle, or duty backup build.

Key Specifications

• The lower ships as a Complete Lower Receiver, saving builders the time of fitting internals by hand.
• It runs a Semi-Auto action for reliable, one-round-per-trigger-pull operation.
• It’s built to accept Multi-caliber AR upper receivers, giving builders flexibility in chambering.
• The RMS Mod 3 stock is finished in Black for a low-visibility, mil-spec appearance.
• The lower is forged and machined from 7075-T6 aluminum for military-grade strength.
• It carries a Hardcoat Anodized finish per MIL-A-8625F Type III Class 2 for corrosion and wear resistance.
• Fire control markings are laser engraved for clear, permanent Safe/Semi indication.
• The buffer tube castle nut is secured with a staked M4 lock nut for a rattle-free stock.
• It is built to mil-spec dimensions, ensuring a tight, consistent fit with standard AR parts kits.

Frequently Asked Questions

What does "factory blem" mean? It indicates a cosmetic-only imperfection identified at the factory; the receiver’s function and mil-spec fit are unaffected.

Will this lower work with any AR upper? It’s built to standard mil-spec dimensions and designed to mate with compatible multi-caliber AR upper receivers.

Does it include a stock? Yes, it comes complete with the RMS Stock Mod 3 already installed.

Buy the BCM Complete Lower Receiver with RMS Stock Mod 3, Black

Start your next AR build on a proven mil-spec foundation from Bravo Company Mfg / BCM. Browse more rifle parts at Schaefer Defense and order this factory-blem lower for fast shipping from our Lubbock, TX gun shop.