The BCM lower receiver group with MK2 receiver extension and BCMGUNFIGHTER SOPMOD Mod 0 wide-body stock in Flat Dark Earth (brand part no. LRG-RMS-STK-MOD-0-SPMD-FDE) ships fully assembled, ready to mate directly with a rifle upper. Bravo Company Mfg builds this group around its MK2 receiver extension, which runs roughly 3/4 of an inch longer than a standard 6-position extension, paired with a matching MK2 buffer and a rifle-length M16 action spring for reliable cycling. The wide-body SOPMOD profile on this Mod 0 stock gives shooters a broader cheek weld surface than the standard-body Mod 0, finished in Flat Dark Earth. Among the complete lowers in the AR15 lowers category, this BCM group is built for shooters who want the wider SOPMOD stock profile with a proven buffer system.

Key Specifications

• This lower ships fully assembled and complete, ready to mate with a rifle upper.
• The group uses BCM’s MK2 receiver extension, roughly 3/4 inch longer than a standard 6-position extension.
• It includes a matching MK2 buffer for the extended receiver extension.
• The group uses a rifle-length M16 action spring for reliable cycling.
• The stock is a SOPMOD wide-body profile, broader than the standard Mod 0 body.
• The BCMGUNFIGHTER Mod 0 stock ships installed and adjustable.
• The finish is Flat Dark Earth.

Frequently Asked Questions

Does this lower ship complete or stripped? It ships complete and fully assembled, ready to mate with a rifle upper.

What’s different about the SOPMOD stock? It’s a wide-body profile, giving a broader cheek weld than the standard Mod 0 body.

What buffer system does this use? BCM’s MK2 receiver extension with a matching MK2 buffer and a rifle-length M16 action spring.

Buy the BCM Lower Receiver Group, MK2 Extension & SOPMOD Mod 0 Wide-Body Stock, FDE

The wider SOPMOD stock profile and proven MK2 buffer system make this complete lower ready to run out of the box. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.