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BCM Complete Widebody Lower w/ SOPMOD Mod 2 Stock – Black Blem

UPC: 812526024275

$480.00

60 in stock

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Description

This is a complete AR-15 lower receiver group from Bravo Company, sold as a factory blem. The receiver is machined from forged 7075-T6 aluminum and hardcoat anodized to a Type III, Class 2 finish, so the only difference between this and a full-price BCM lower is a minor cosmetic mark somewhere on the surface. Function and fitment are untouched. It arrives fully assembled with the fire control installed, an enlarged polymer trigger guard, the BCM Gunfighter Mod 4 grip, and the smooth-breaking BCM PNT trigger that runs cleaner than a standard mil-spec unit.

What the MK2 System Brings to This BCM Lower

The standout feature here is the MK2 recoil mitigation system. It's an intermediate length that sits between a rifle and a carbine setup, so you get a rifle stock's length of pull with the adjustability of a carbine. The longer travel and heavier buffer smooth out felt recoil and give you a more consistent carrier velocity, which pays off in both reliability and how flat the gun runs. It's especially handy on short barrel builds, where the extra dwell helps tame the impulse.

Running the Mod 2 SOPMOD Widebody Stock

The Mod 2 SOPMOD widebody stock is a real upgrade over a plain M4 stock. It gives you a fuller cheek weld, better balance, and a snag-free profile. You also get a removable buttpad, so you can pick between a rubberized pad or a diamond-textured non-slip surface depending on how you shoot. The VBOST sling tab and extra web sling slots add flexibility for how you sling and carry the rifle.

Worth noting on assembly: because the MK2 tube runs longer than carbine spec, this system uses a rifle action spring and the dedicated BCM MK2 buffer, so standard carbine or rifle buffers won't swap in. Drop this under any mil-spec upper and you've got a proven foundation ready to build on.

Key Specifications

  • Manufacturer: Bravo Company Mfg / BCM
  • MPN: BCMLRG-STK-MOD-2-SPMD-BLK-COSMO
  • UPC: 812526024275
  • Product Type: Complete Lower Receiver
  • Model: BCM4 Factory Blem
  • Caliber/Gauge: Multi
  • Action: Semi-Auto
  • Color: Black
  • Receiver Material: Forged 7075-T6 Aluminum
  • Finish: Hardcoat Anodized, MIL-A-8625F, Type III, Class 2
  • Stock: BCM Mod 2 SOPMOD Widebody
  • Grip: BCM Gunfighter Mod 4
  • Trigger: BCM PNT (Polished Nickel Teflon)
  • Buffer System: MK2 Intermediate / A5 Length
  • Receiver Extension: MK2 7075-T6, 8-Position
  • Trigger Guard: BCM Enhanced Polymer

What’s Included

  • BCM complete AR-15 lower receiver (forged 7075-T6, black anodized)
  • BCM Mod 2 SOPMOD widebody stock with removable modular buttpad
  • BCM Gunfighter Mod 4 pistol grip
  • BCM PNT trigger (installed fire control group)
  • BCM enhanced polymer trigger guard
  • BCM MK2 receiver extension with staked M4 lock nut
  • BCM MK2 buffer and rifle action spring
  • BCM QD sling mount end plate

Frequently Asked Questions

What does the blem on this BCM complete lower mean?

Blem is short for blemish, meaning the receiver has a minor cosmetic mark that kept it from passing BCM's strict visual standards. It has zero effect on how the lower functions, fits, or holds up over time. You're getting the full BCM build quality at a lower cost, just with a small imperfection somewhere on the finish.

Will this lower work with any AR-15 upper?

Yes. It comes fully assembled and is built to mil-spec, so it will mate up with any standard mil-spec AR-15 or M4 upper receiver. Just line it up, drop in your takedown pins, and you're ready to run.

Can I use a regular carbine buffer with the MK2 system on this lower?

No, and this is an important one. The MK2 receiver extension is longer than a carbine tube and requires the dedicated BCM MK2 buffer along with a rifle action spring, both of which come with this lower. Standard carbine or rifle buffers will not work in this system, so keep the included MK2 parts in place.

What's the advantage of the Mod 2 SOPMOD widebody stock and MK2 buffer setup?

The MK2 buffer system runs at an intermediate length, giving you a rifle-length pull with carbine adjustability while smoothing out felt recoil and carrier velocity. The Mod 2 SOPMOD widebody stock adds a fuller cheek weld, better balance, and a swappable buttpad for your preferred shooting style. Together they make for a noticeably softer, more controllable shooting experience, especially on shorter barreled builds.

Additional information

UPC

812526024275

Manufacturer

Manufacturer Part Number

BCMLRG-STK-MOD-2-SPMD-BLK-COSMO

Action

Caliber/Gauge

Multi

Color

Black

Model

Product Type

Complete Lower Receiver

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