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Magpul

Magpul Stock STR Collapsible Mil-Spec Diameter AR-15 LR-308 Synthetic FDE

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

Collapsible Str

Buttstock for AR-15 and LR-308

Dual Water-resistant

Battery tubes hold two CR123A

Rear-access Storage

Uses hand-removable rubber plugs

Reinforced Polymer

Shielded operation lever

Supplemental Friction

Lock helps reduce wobble on

$90.99
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SKU: MAG470-FDE-873750006246

Overview

Built for shooters who want a collapsible stock with added utility, this model combines storage capacity with the familiar layout of the CTR platform. Its dual battery tubes hold CR123A or AA batteries and are accessed from the rear with hand-removable rubber plugs, making it a practical choice for keeping essentials close at hand. The reinforced polymer body, shielded operation lever, and supplemental friction lock are designed to help reduce wobble on the receiver extension, while the enhanced cheek weld and multiple sling attachment options support a more controlled setup. Buffer tube assembly is not included, so it suits users assembling or upgrading a compatible AR-15 or LR-308 platform with a Mil-Spec receiver extension.

Why Hunters Choose the Magpul

Dual, Water-resistant

Battery tubes store two CR123A

Enhanced Cheek

Weld over a conventional AR-15

Reinforced Polymer

A-frame body supports the stock’s

Supplemental Friction

Lock helps reduce wobble on

Includes Two

Integral sling loops and a

Key Features

  • Collapsible STR buttstock for AR-15 and LR-308 platforms
  • Dual water-resistant battery tubes hold two CR123A or AA batteries each
  • Rear-access storage uses hand-removable rubber plugs
  • Reinforced polymer A-frame body with shielded operation lever
  • Supplemental friction lock helps reduce wobble on the receiver extension tube
  • Includes two integral sling loops and a reversible QD sling swivel mount point

Best Used For

  • Hunters wanting a collapsible stock with built-in storage for spare batteries on the rifle
  • Users who prefer an enhanced cheek weld over a conventional AR-15 stock
  • Shooters needing a mil-spec fit for AR-15 or LR-308 setups
  • Field users who want sling attachment options without adding extra accessories
  • Owners looking for a stock with a supplemental friction lock to reduce receiver extension wobble

Specifications

Battery Tube Capacity2 CR123A or AA batteries each
Battery Tube Count2
Buffer Tube Assembly IncludedNo
Cheek WeldEnhanced
Compatible WithAR-15
Country Of OriginUnited States Of America
Fixed Or CollapsibleCollapsible
Mil Spec Or CommercialMil-Spec
Qd Sling Swivel Mounting PointReversible, push-button
Reinforced Polymer A Frame BodyYes
Rubber Butt PadRemovable 0.30" thick
Shielded Operation LeverYes
Sling Loops2 integral sling loops
Storage CapableYes
Supplemental Friction LockYes
Water Resistant Battery TubesYes

Pros

  • Dual, water-resistant battery tubes store two CR123A or AA batteries each.
  • Enhanced cheek weld over a conventional AR-15 stock.
  • Reinforced polymer A-frame body supports the stock’s core structure.
  • Supplemental friction lock helps reduce wobble on the receiver extension tube.
  • Includes two integral sling loops and a reversible push-button QD sling mount.
  • Removable 0.30-inch rubber butt pad adds a practical contact surface.

Considerations & Trade-offs

  • Storage tubes add bulk and complexity compared with a standard collapsible stock, so this model makes sense only if you want the extra onboard storage.
  • The dual battery tubes are sized for CR123A or AA batteries, which is useful but limits what can be carried in the stock.
  • Buffer tube assembly is not included, so this is not a complete stock setup by itself.
  • The enhanced cheek weld and rubber butt pad are useful features, but the added structure may be more than some shooters want on a minimalist build.

Suggested Comparisons

  • AR-15 collapsible stocks
  • Mil-spec buffer tube stocks
  • Stocks with integrated storage
  • Sling-ready rifle stocks

Suggested Accessories

  • Storage-capable battery carrier
  • QD sling swivel
  • Rifle sling
  • Replacement butt pad

Frequently Asked Questions

What rifles is the Magpul STR stock compatible with?

It is listed as compatible with AR-15 platforms and is described as an AR-15/LR-308 stock. The provided data also identifies it as a mil-spec collapsible stock.

Does the STR stock include storage?

Yes. It has dual, water-resistant battery tubes that each hold 2 CR123A or AA batteries, accessed from the rear with hand-removable rubber plugs.

Does this stock come with the buffer tube assembly?

No. The long description states that the buffer tube assembly is not included.

What sling attachment options are built into the stock?

The STR stock includes 2 integral sling loops and a reversible push-button QD sling swivel mounting point.

What features does the STR stock have for fit and stability?

The description says it uses a reinforced polymer A-frame body, a shielded operation lever, a supplemental friction lock for reduced wobble on the receiver extension tube, and a removable 0.30" thick rubber butt pad.