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This is a fully assembled AR-15 lower receiver from Bravo Company Manufacturing that gives you a professional-grade foundation for your rifle build. The receiver starts with a forged 7075-T6 aluminum body, hardcoat anodized black for durability and corrosion resistance. Everything you need comes pre-assembled at the factory, so you just need to marry it to a mil-spec upper receiver and you're ready to go.
What sets this lower apart is the integrated MK2 Recoil Mitigation System. The MK2 uses an intermediate-length buffer tube that's about 3/4 inch longer than standard carbine systems, paired with a rifle-length action spring and a T0 buffer weighing around 3.8 ounces. This setup delivers a noticeably smoother shooting experience by reducing felt recoil and minimizing bolt bounce, while maintaining consistent carrier velocity across different ammunition types. The longer receiver extension also means better dwell time, which translates to more reliable function across carbine, mid-length, and rifle-length gas systems.
The stock on this lower is BCM's Mod 0 SOPMOD widebody design, constructed from impact-resistant polymer that's both lightweight and durable. It features a snag-free profile with no sharp edges that can catch slings or gear, plus a modular VBOST tab for securing your sling when the rifle isn't in use. You get ambidextrous sling mount options including QD swivel sockets, and the stock easily adjusts across eight positions on the MK2 receiver extension.
Inside, you get BCM's PNT trigger assembly with polished nickel-teflon coating for a clean, smooth break. The enlarged trigger guard allows easier operation with gloves if needed. All the fire control parts, magazine catch, bolt catch, safety selector, and takedown pins are precision-machined mil-spec components, not MIM parts. The grip is BCM's Gunfighter Mod 3 with a sealed compartment and aggressive texturing for positive control. Everything is assembled and tested as a complete system before it ships, so there's no guesswork or need to source individual parts.
This lower runs mil-spec, making it compatible with any standard AR-15 upper receiver. The combination of premium materials, thoughtful engineering, and factory assembly makes this a solid choice whether you're building your first rifle or adding another upper to your collection.
Yes, this lower comes fully assembled from the factory with all internal components installed. You just need to pair it with a mil-spec upper receiver and add a charging handle and bolt carrier group. Everything else is already done.
The MK2 is an intermediate system that sits between carbine and rifle length. It uses a longer receiver extension with more positions for adjustment, a heavier buffer, and a rifle-length spring. This reduces felt recoil, minimizes bolt bounce, and provides more consistent performance across different gas system lengths and ammunition types compared to standard carbine buffers.
Technically you can install any mil-spec stock on the MK2 receiver extension, but note that the MK2 tube is about 3/4 inch longer than a carbine tube. Some mil-spec stocks may not collapse completely tight to the lock nut due to this extra length. The included Mod 0 SOPMOD stock is optimized for the MK2 system.
Yes, this BCM lower follows mil-spec dimensions and works with any standard mil-spec complete upper receiver. It's built for multi-caliber use, so you can run 5.56 NATO, 223 Remington, and other compatible uppers on the same lower.
BCM's PNT trigger has nickel-teflon coating for a smooth, crisp break. It's a mil-spec trigger that meets all standard dimensions, so if you ever want to swap it out for a different trigger, that's no problem. The trigger itself is precision-machined investment casting, not cheap MIM components.
Basic AR maintenance is straightforward. Standard pivot pin and bolt catch tools work fine if you ever need to disassemble the fire control group. Nothing about this lower requires proprietary or unusual tools. The fire control pocket maintains tight mil-spec tolerances for consistent performance.
| UPC | 812526023735 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | LRG-RMS-STK-MOD-0-SPMD-BLK |
| Color | Black |
| Style | Assembled |
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