The BCM Gunfighter Stock Kit Mod 1 SOPMOD Compartment is a complete carbine stock kit for AR-15 and M4 rifles, supplying a storage-equipped stock and the full Mil-Spec receiver extension assembly.
The BCM Gunfighter Stock Kit Mod 1 SOPMOD Compartment pairs the Mod 1 stock — wide SOPMOD cheek weld, watertight storage compartment, QD sockets and VBOST sling tab — with a full Mil-Spec assembly: receiver extension, buffer, action spring, castle nut and QD end plate. Every component is built to Bravo Company USA's specification, matched and made in the USA.
Whether you are completing a new lower or retiring a rattling factory assembly, the kit approach guarantees the whole chain — tube, buffer, spring, stock — meets one standard. Assemble once, and the rear of the rifle is solved: stable weld, managed sling, batteries aboard.
Key Features
- Complete assembly in one box — stock through castle nut
- Storage-equipped SOPMOD stock — comfort plus onboard supplies
- QD end plate + stock QD sockets — multiple sling points included
- Matched BCM specification — every part to the same standard
- Two finishes — Black or Flat Dark Earth
Compatibility & Fitment
Fits any AR-15/M4-pattern lower receiver with a standard threaded rear. The kit supplies the Mil-Spec carbine receiver extension itself, so no existing buffer tube is needed — a sensible pick if you are building a lower from parts rather than upgrading an assembled rifle. Fitting is ordinary assembly: thread the extension in, fit the end plate and castle nut, torque and stake the nut, then drop in the buffer and spring. A castle-nut wrench is required.
Technical Specifications
Platform | AR-15 / M4 |
Fits | Any AR-15/M4 lower receiver with a standard threaded rear |
Type | Complete stock kit with storage — stock, Mil-Spec buffer tube, buffer, action spring, castle nut, QD end plate |
Finish | Black, Flat Dark Earth |
Mount Interface | QD end plate + stock QD sockets and VBOST tab |
Made in | USA |
Brand | Bravo Company USA |
US Shipping & Support
Shipped from D&R Sports Center in the USA with fast, tracked delivery. Questions on fit, mounting or which model suits your setup? Our team is glad to help before and after your purchase.
Frequently Asked Questions
What do I need on the rifle to fit this kit?
Just a stripped or complete AR-15/M4 lower with the standard threaded rear, because the kit supplies the Mil-Spec carbine receiver extension itself along with the buffer, action spring, castle nut and QD end plate. No existing buffer tube is needed. It is a sensible pick if you are building a lower from parts rather than upgrading an assembled rifle.
What does the compartment version add over the plain SOPMOD kit?
This Mod 1 stock has a watertight storage compartment in the body, which the Mod 0 SOPMOD kit does not. That is useful if you want a battery or small spares carried on the gun and kept dry. Otherwise both kits share the same complete hardware set and the SOPMOD-style cheek weld.
Is fitting it a job I can do at home?
It is ordinary assembly rather than gunsmithing: thread the receiver extension in, fit the end plate and castle nut, torque and secure the nut, then drop in the buffer and spring. A castle nut wrench and a way of holding the lower steady are the main requirements. If you would rather not torque the nut yourself, a gunsmith will do it quickly.
Which color options are there, and is there a stock-only alternative?
The kit is available in Black and Flat Dark Earth. If your rifle already has a good Mil-Spec carbine tube, the Mod 1 SOPMOD Compartment Stock on its own avoids doubling up on hardware.
