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The B5 Systems Enhanced SOPMOD started life as the NSWC Crane SOPMOD buttstock, a design born out of the specific needs of special operations forces. B5 took that proven platform and refined it, keeping the wide profile and generous cheek weld that made the original a favorite while adding the touches serious users were asking for. If you've spent time behind an LPVO or a magnified optic, you already know how much a solid, repeatable cheek weld matters, and this is where the Enhanced SOPMOD earns its keep. It slides onto any mil-spec carbine receiver extension and locks up tight, with the kind of minimal wobble people tend to rave about after switching over from other stocks.
The feature set here is aimed at real-world use, not spec-sheet bragging. You get color-matched steel hardware, one-piece anti-rotational QD sling mounts that are over-molded into the body for durability, and fixed sling attachment points for flexibility in how you run your setup. The cushioned, non-slip buttpad keeps the rifle planted on your shoulder and even includes a built-in M4 Multitasker tool holder. A sure-grip stock latch makes adjustments quick and positive, and the whole thing is built from mil-spec materials and finishes to hold up to hard use.
One of the standout perks is the dual water-resistant storage compartments. They're perfect for stashing spare CR123 batteries for your optics and lights, and folks who run this stock consistently point out just how much you can actually fit in there. This model comes molded in Flat Dark Earth, so the color runs all the way through rather than sitting on top as a coating that can chip. It's collapsible across multiple positions for length-of-pull adjustment, weighs in right around 11.8 ounces, and is proudly made in the USA.
Whether you're building a duty gun, a range rifle, or a clone project, the Enhanced SOPMOD is one of those upgrades that just works. It's frequently compared to the legendary LMT SOPMOD and delivers that same feel and function at a far friendlier price, which is a big part of why it shows up on so many builds.
It's designed to fit any standard mil-spec carbine receiver extension, which covers the vast majority of AR-15 and similar builds out there. Keep in mind the buffer tube is not included, so you'll need one already installed or purchased separately. If your rifle runs a commercial-spec tube, this stock won't be the right match.
This is one of the most praised aspects of the stock. Users consistently report it locks up snug with little to no rattle or play once shouldered, even compared to the original Crane and LMT versions. The sure-grip latch helps keep everything positive when you adjust the length of pull.
The dual water-resistant compartments are sized well for spare CR123 batteries used in optics and weapon lights, and there's a surprising amount of room in there. Owners often mention being able to carry a handful of batteries or other small essentials. It's a handy spot to keep backups without adding any extra gear to your kit.
The B5 is frequently described as delivering the same feel, cheek weld, and function as the legendary LMT SOPMOD for a lot less money. Many people who own both say the B5 holds its own and is far easier to find in stock. For most builds, it's a smart way to get that classic SOPMOD experience without the premium.
| UPC | 748252571533 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | SOP-1075 |
| Color | Flat Dark Earth |
| Product Type | Mil-Spec |
| Style | Collapsible |
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