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B5 Systems

B5 Systems Enhanced SOPMOD AR-15 Stock, Mil-Spec, Flat Dark Earth

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Fits Mil-spec

Diameter buffer tubes for AR-15

Enhanced Sopmod

Stock in Flat Dark Earth

Ergonomic Cheek

Weld for consistent stock placement

Overmolded Steel

Anti-rotational QD sling mounts

Dual Storage

Water-tight battery compartment

$99.99
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SKU: 98637-814927020016

Overview

Built for a mil-spec diameter buffer tube, this AR-15 stock is aimed at shooters who want a stable, adjustable-feeling shoulder interface with practical field features. It includes an ergonomic cheek weld, a no-slip cushioned butt pad, dual storage compartments, and both quick-detach and fixed sling attachment options for flexible setup. The Flat Dark Earth finish and color-matched steel hardware give it a clean, coordinated look, while the overmolded steel anti-rotational QD sling mounts add secure sling mounting points. For hunters and serious rifle users, it offers a purpose-driven upgrade focused on comfort, organization, and compatibility without unnecessary extras.

Why Hunters Choose the B5 Systems

Mil-spec Diameter

Fit for compatible buffer tubes

Ergonomic Cheek

Weld supports a stable shoulder

Quick-detach Fixed

Sling mounts included

Dual Storage

Compartments add onboard accessory storage

No-slip Cushioned

Butt pad improves rear-end contact

Key Features

  • Fits Mil-spec diameter buffer tubes for AR-15 setups.
  • Enhanced SOPMOD stock in Flat Dark Earth finish.
  • Ergonomic cheek weld for consistent stock placement.
  • Overmolded steel anti-rotational QD sling mounts.
  • Dual storage compartments with water-tight battery compartment.
  • No-slip cushioned butt pad and Suregrip stock latch.
  • Color-matched steel hardware and fixed sling mounts.

Best Used For

  • For hunters building a Mil-spec AR-15 setup with an ergonomic cheek weld and fixed sling options.
  • For users who want a stock with dual storage compartments and a water-tight battery compartment.
  • For field carry where a no-slip cushioned butt pad and Suregrip stock latch are useful.
  • For shooters needing a Flat Dark Earth stock to match an existing rifle finish.
  • For those prioritizing a stock with QD sling mounting and color-matched steel hardware.

Specifications

ColorFlat Dark Earth
Color Matched Steel HardwareYes
Dual Storage CompartmentsYes
Ergonomic Cheek WeldYes
Fixed Sling MountsYes
Height4.90 in
MaterialMilspec Materials/Finishes
Mil Spec DiameterYes
ModelSOP-1075
No Slip Cushioned Butt PadYes
Overall Weight11.80 oz
Overmolded Steel Anti Rotational Qd Sling MountsYes
Quick Detach MountYes
Suregrip Stock LatchYes
Water Tight Battery CompartmentYes
Width7.40 in

Pros

  • Mil-spec diameter fit for compatible buffer tubes
  • Ergonomic cheek weld supports a stable shoulder position
  • Quick-detach and fixed sling mounts included
  • Dual storage compartments add onboard accessory storage
  • No-slip cushioned butt pad improves rear-end contact
  • Flat Dark Earth finish matches the listed configuration

Considerations & Trade-offs

  • Requires a Mil-spec diameter buffer tube, so it is not a universal fit for all AR-15 setups.
  • The dual storage compartments and water-tight battery compartment add utility, but they also make the stock bulkier than a minimalist option.
  • At 11.80 oz, it is a more substantial stock than lightweight alternatives, which may matter for users prioritizing a lighter rifle.
  • Flat Dark Earth finish may be a better match for some builds than others, so color coordination should be considered before purchase.

Suggested Comparisons

  • AR-15 mil-spec stocks
  • AR-15 adjustable stocks
  • QD sling mounts and stock accessories
  • AR-15 furniture and stock upgrades

Suggested Accessories

  • QD sling mount
  • Sling
  • Buffer tube
  • Storage batteries

Frequently Asked Questions

Will this stock fit a standard AR-15 buffer tube?

It is designed to attach to a Mil-spec diameter buffer tube. The product data does not indicate compatibility with commercial-spec tubes.

Does the stock include sling attachment options?

Yes. The listed features include overmolded steel anti-rotational QD sling mounts and fixed sling mounts.

Does it have storage compartments?

Yes. The stock includes dual storage compartments, and the description notes a water tight battery compartment.

What finish does this stock come in?

It is finished in Flat Dark Earth.

What are the listed dimensions and weight?

The provided specifications list an overall weight of 11.80 oz, a width of 7.40 inches, and a height of 4.90 inches.