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B5 Systems

Ar-15 Enhanced Sopmod Stock Collapsible Mil-Spec - Ar-15 Enhanced Sopmod Stock Collapsible Mil-Spec Fde

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

Reinforced Polymer

Stock fits M4-type receiver extensions

Improved Cheekweld

For added comfort and consistency

Two Waterproof

Storage compartments hold 2 AA

Streamlined Contours

Help reduce snagging on gear

Sure-grip Stock

Latch supports intuitive length-of-pull adjustment

$95.00
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SKU: 100016915

Overview

Built for shooters using M4-type receiver extensions, this collapsible stock is designed to support a more consistent cheekweld and straightforward length-of-pull adjustment. Its reinforced polymer construction includes two waterproof storage compartments sized for 2 AA or 3 CR-123 batteries, giving hunters and field users a practical place to carry small essentials. Streamlined contours are intended to reduce snagging on clothing, gear, or vegetation, while the anti-slip rubber recoil pad and Sure-Grip latch add control during setup and shouldering. It also includes a black stainless steel QD swivel mount and two molded sling slots for flexible carry options.

Why Hunters Choose the B5 Systems

Improved Cheekweld

Supports more comfortable, consistent shouldering

Two Waterproof

Storage compartments hold small batteries

Fits M4-type

Receiver extensions for compatible AR-15

Streamlined Contours

Help reduce snagging on clothing

Sure-grip Stock

Latch allows convenient length-of-pull adjustment

Key Features

  • Reinforced polymer stock fits M4-type receiver extensions
  • Improved cheekweld for added comfort and consistency
  • Two waterproof storage compartments hold 2 AA or 3 CR-123 batteries
  • Streamlined contours help reduce snagging on gear or vegetation
  • Sure-Grip stock latch supports intuitive length-of-pull adjustment
  • Anti-slip rubber recoil pad helps secure the weapon to the shoulder
  • Includes a black stainless steel QD swivel mount and two molded sling slots

Best Used For

  • Hunters wanting a more consistent cheekweld on an M4-type receiver extension
  • Users needing waterproof onboard storage for spare batteries in the stock
  • Field operators who prefer snag-resistant contours around clothing, gear, or brush
  • Shooters using quick length-of-pull adjustments with a Sure-Grip stock latch
  • Users wanting sling attachment options through QD mount and molded sling slots

Specifications

CheekweldImproved cheekweld
ColorFde
Contoured DesignStreamlined contours resist snagging
FitsM4-type receiver extensions
Length Of Pull AdjustmentSure-Grip stock latch
MaterialReinforced polymer
Mil SpecYes
Qd Swivel MountBlack, stainless steel QD swivel mount
Recoil PadAnti-slip rubber recoil pad
Sling SlotsTwo molded 1A 1/4" wide sling slots
Storage Capacity2 AA or 3 CR-123 batteries
Storage CompartmentsTwo waterproof storage compartments

Pros

  • Improved cheekweld supports more comfortable, consistent shouldering
  • Two waterproof storage compartments hold small batteries and gear
  • Fits M4-type receiver extensions for compatible AR-15 setups
  • Streamlined contours help reduce snagging on clothing and equipment
  • Sure-Grip stock latch allows convenient length-of-pull adjustment
  • Anti-slip rubber recoil pad helps secure the rifle to the shoulder

Considerations & Trade-offs

  • Fits M4-type receiver extensions, so compatibility is limited to that platform.
  • Storage compartments are sized for 2 AA or 3 CR-123 batteries, which is useful but not a substitute for larger gear storage.
  • The reinforced polymer construction and integrated features add capability, but also make this a more specialized stock than a basic collapsible option.
  • Includes a black QD swivel mount and molded sling slots, but sling setup will depend on the hardware you already use.

Suggested Comparisons

  • AR-15 stock accessories
  • Mil-spec collapsible stocks
  • Rifle sling mounting accessories
  • Battery storage accessories for rifle stocks

Suggested Accessories

  • QD sling swivel
  • Rifle sling
  • AA batteries
  • CR123 batteries

Frequently Asked Questions

What receiver extensions does this stock fit?

It fits M4-type receiver extensions.

Does the stock provide storage?

Yes. It has two waterproof storage compartments running the length of the stock. The description says they hold 2 AA or 3 CR-123 batteries.

Is the cheekweld different from a standard stock?

The product description says it offers an improved cheekweld designed for increased comfort and consistency.

What sling attachment options are included?

It features a black stainless steel QD swivel mount and two molded 1A 1/4" wide sling slots.

Is the stock adjustable?

Yes. The description notes a Sure-Grip stock latch for convenient and intuitive length-of-pull adjustment.