The BCM Complete Lower Receiver (BCM part no. BCMLRG-RMS-STK-MOD-2-SPMD-FDE-COSMO) ships with a BCM RMS SOPMOD-pattern stock installed in Flat Dark Earth, sold as a factory blem unit with a cosmetic flaw that doesn’t affect function. Bravo Company Mfg builds this lower as a multi-caliber-compatible AR-pattern platform, with the SOPMOD-style stock, grip, and buffer assembly already installed, ready to accept a fire control group. Buying it as a factory blem lets builders get genuine BCM parts and assembly at a reduced price for a purely cosmetic imperfection. Builders who want BCM’s SOPMOD-pattern stock without paying full price for a cosmetic blemish pick this factory blem lower.

Key Specifications

• Ships as a complete lower receiver with stock, grip, and buffer assembly installed.
• Fitted with a BCM RMS SOPMOD-pattern stock.
• Finished in Flat Dark Earth.
• Sold as a factory blem unit, a cosmetic second with no functional issue.
• Built as a multi-caliber-compatible AR-pattern platform.
• Operates on a semi-automatic action.
• Built on a BCM MK2 receiver extension, forged from 7075-T6 aluminum in an 8-position, mil-spec-diameter design roughly 3/4 inch longer than a standard carbine tube.
• Paired with a BCM MK2 Mod 1-T0 buffer weighing approximately 3.8 ounces for reliable cycling.
• The SOPMOD-pattern stock uses a patented semi-clubfoot design with an ambidextrous, rotation-limited QD sling interface.

Frequently Asked Questions

What does factory blem mean? It’s a cosmetic second with a minor visual flaw and no functional issue, sold at a reduced price.

What stock is installed? A BCM RMS SOPMOD-pattern stock in Flat Dark Earth.

Does this lower include the fire control group? No, it ships complete with the stock, grip, and buffer assembly installed, ready to accept a fire control group.

Buy the BCM Complete Lower Receiver

Get genuine BCM parts at a blem discount. Browse more in our rifle parts selection. As a serialized firearm, it ships to your FFL from our Lubbock, Texas gun shop.