B5 Systems SOPMOD AR-15 Mil-Spec Stock Coyote Government
B5 Systems
$95.00
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B5 Systems
B5 Systems SOPMOD AR-15 Mil-Spec Stock Coyote Government
The B5 Systems SOPMOD AR-15 Mil-Spec Stock in Coyote is the exact buttstock designed by Crane NSWC and manufactured by B5 Systems for the U.S. Department of Defense since 2011 — now available to civilian shooters who demand the same proven performance.
- Crane NSWC-designed stock trusted by U.S. military since 2011
- Ergonomic cheek weld geometry for consistent, comfortable sight alignment
- Color-matched steel hardware blends seamlessly with Coyote finish
- No-slip cushioned butt pad absorbs recoil and prevents shoulder migration
- Dual water-resistant storage compartments for batteries or essentials
- Fits mil-spec AR carbine receiver extensions; proudly made in the USA
Who This Is For
The B5 Systems SOPMOD stock is built for serious AR-15 owners — from competitive shooters and home defenders to hunters and law enforcement professionals — who want a battle-tested, mil-spec furniture upgrade that delivers real-world durability, practical storage, and a clean Coyote Brown aesthetic that pairs perfectly with earth-tone builds.
Specifications
| Brand | B5 Systems |
|---|---|
| Model | SOPMOD Stock |
| Color | Coyote Brown |
| Receiver Extension | Mil-Spec AR Carbine |
| Hardware | Color-Matched Steel |
| Butt Pad | No-Slip Cushioned Rubber |
| Storage | Dual Water-Resistant Compartments |
| Sling Mounts | Fixed, Integrated |
| Material | Mil-Spec Polymer & Steel |
| Country of Origin | USA |
Frequently Asked Questions
Will the B5 Systems SOPMOD stock fit my AR-15's buffer tube?
Yes — the SOPMOD stock is designed specifically for mil-spec diameter AR carbine receiver extensions (buffer tubes). It will not fit commercial-spec buffer tubes, which have a slightly larger diameter. If you're unsure which spec your rifle uses, mil-spec tubes are the more common standard on most quality AR-15 builds and factory rifles.
What can I store in the dual compartments, and are they truly waterproof?
The two built-in compartments are designed to hold small essentials like CR123 or AA batteries, a folded cleaning patch, or a spare bolt carrier pin. B5 Systems rates them as water-resistant rather than fully waterproof, meaning they'll protect contents from rain and moisture exposure during normal use — but they aren't intended for submersion.
How does the B5 Systems SOPMOD compare to a standard mil-spec AR-15 stock?
The SOPMOD offers several upgrades over a basic mil-spec stock: a more ergonomic cheek weld profile for improved eye relief, a cushioned no-slip butt pad for better recoil management, integrated fixed sling mounts, and those dual storage compartments. It's the same stock the U.S. military selected over alternatives — making it one of the most proven upgrades available for your AR-15 platform.
