B5 Systems SOPMOD Buttstock Mil-Spec AR-15 Black
B5 Systems
$95.00
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B5 Systems
B5 Systems SOPMOD Buttstock Mil-Spec AR-15 Black
The B5 Systems SOPMOD Buttstock delivers military-grade performance and ergonomics on your Mil-Spec AR-15, combining the battle-proven Crane NSWC SOPMOD design with modern enhancements that serious shooters demand.
- Overmolded steel anti-rotational QD sling mounts for secure, play-free attachment
- Dual water-resistant storage compartments keep essentials dry and accessible
- No-slip cushioned buttpad absorbs recoil and locks position against the shoulder
- Color-matched steel hardware provides a clean, professional finish throughout
- SureGrip stock latch ensures positive lock-up on Mil-Spec carbine buffer tubes
- Made in the USA from Mil-Spec materials with matching Mil-Spec finishes
Who This Is For
The B5 Systems SOPMOD Buttstock is ideal for AR-15 owners who want a feature-rich, duty-ready stock without sacrificing ergonomics — whether you're a competitive shooter, a home-defense builder, or a professional looking to replicate a proven military configuration on a Mil-Spec carbine receiver extension.
Specifications
| Brand | B5 Systems |
|---|---|
| Model | SOPMOD Buttstock |
| Color | Black |
| Buffer Tube Compatibility | Mil-Spec Carbine Receiver Extension |
| Sling Mount Type | QD (Quick Disconnect) & Fixed |
| Storage Compartments | 2 Water-Resistant Compartments |
| Hardware | Color-Matched Steel |
| Buttpad | No-Slip Cushioned Overmold |
| Country of Origin | USA |
| Platform | AR-15 (Mil-Spec) |
Frequently Asked Questions
Will the B5 Systems SOPMOD Buttstock fit my AR-15's buffer tube?
The B5 Systems SOPMOD Buttstock is designed specifically for Mil-Spec carbine receiver extensions (buffer tubes). It is not compatible with commercial-spec buffer tubes, which have a slightly larger diameter and different taper. Before purchasing, confirm your lower receiver or existing stock uses a Mil-Spec tube. Most quality AR-15 builds and factory rifles from reputable manufacturers ship with Mil-Spec extensions.
What type of sling can I use with this buttstock?
The SOPMOD Buttstock includes both QD (Quick Disconnect) push-button sling swivel mounts and fixed sling loops, giving you flexibility across a wide range of sling styles. The anti-rotational design of the QD mounts prevents the socket from spinning under load, which is a common frustration with lesser stocks. Single-point, two-point, and three-point sling configurations are all supported.
What are the storage compartments useful for in the field?
The dual water-resistant storage compartments in the SOPMOD Buttstock are sized to hold small but essential items such as a spare bolt carrier group, cleaning kit components, batteries, or a small medical patch. The water-resistant seals help protect contents from moisture in outdoor and adverse conditions. These compartments were a defining feature of the original Crane NSWC SOPMOD design and remain one of the most practical innovations on any AR-15 stock today.
