Magpul Industries

Magpul STR Carbine Stock Mil-Spec for AR15/M4

Name: Magpul STR Carbine Stock Mil-Spec for AR15/M4
Brand: Magpul Industries
SKU: MAG470-BLK

£109.99

Tax included where applicable.

In stock7–10 day delivery

Colour: Black

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Delivery Information

Orders are dispatched from the United Kingdom with tracked delivery. You will receive tracking details by email once your order ships.

Returns & Refunds

Please see our Returns & Refunds policy for full details on returns and exchanges.

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SKU: MAG470-BLKUPC: 873750006239

Product Overview

CTR stability plus onboard storage — the STR is the carbine stock for shooters who want everything locked down.

The Magpul STR (Storage/Type Restricted, MAG470) starts with the CTR's celebrated friction-lock system — clamping the stock rigid against the receiver extension for zero wobble — then adds a wider cheek weld and two water-resistant battery storage tubes in the butt. Optic batteries, spare parts and small essentials ride in the rifle itself, protected from the weather and always where you left them.

The broader body also deepens the cheek weld surface, giving a fuller, more supportive reference for precision work behind magnified glass. A rubber buttpad, ambidextrous sling options and QD compatibility complete a stock that turns up on duty and competition rifles alike.

Why shooters choose the STR

Dual friction-lock system — fixed-stock rigidity, zero rattle
Two water-resistant storage tubes — batteries and spares onboard
Wider, deeper cheek weld — superb behind optics
Rubber buttpad & QD sling integration — fully equipped out of the box
Four finishes — Black, Flat Dark Earth, Olive Drab Green, Stealth Gray

Fit & installation

Fits Mil-Spec carbine receiver extensions. Slide on, set your length of pull, engage the friction lock — the wobble disappears instantly.

Specifications

Model: MAG470
Platform: AR15/M4
Fit: Mil-Spec carbine receiver extension
Storage: Two water-resistant battery tubes
Finishes: Black, Flat Dark Earth, Olive Drab Green, Stealth Gray

Stability with storage to match. Order the STR Carbine Stock today — in stock at Xtreme Tactical Gun Parts with free UK delivery.

Explore more: Rifle & Shotgun Stocks, Precision Rifle Stocks, AR-15 Parts or browse all Magpul.

Compatibility & Fitment

Fits AR15/M4 rifles with a Mil-Spec-diameter carbine receiver extension (buffer tube). Check your tube specification before ordering.

Please confirm platform, interface and fitment requirements before ordering.

Technical Specifications

SKU / MPN	MAG470-BLK
UPC / Barcode	873750006239
Brand	Magpul Industries

Shop Related Categories

Shop AR-15 Parts & Accessories View category

Shop Magpul AR-15 Stocks View category

Shop Magpul Industries View category

Shop Rifle & Shotgun Stocks View category

Related Buying Guides

Not sure which option is right for your build? These guides break it down.

Buying Guide How to Choose an AR-15 Stock: Fit, Length of Pull & Platform

Buying Guide Best AR-15 Upgrades Under £100 (That Actually Make a Difference)

View all buying guides →

Product Questions

Does the STR fit a standard carbine build?

It fits AR15/M4 rifles with a Mil-Spec-diameter carbine receiver extension, which covers most current builds. It will not fit commercial-diameter tubes, so confirm your buffer tube specification before ordering. Fitting is the usual stock swap on the tube, with no permanent alteration.

What does the dual friction lock give me?

The STR clamps against the buffer tube at two points once the length is set, which takes out the play a plain carbine stock has. The result is a firmer, quieter stock that holds its cheek weld under recoil. You release the lock to change length, then re-set it.

What's in the battery tubes?

The STR has two water-resistant storage tubes in the body, sized for carrying spares in the stock rather than loose in a pocket. They're sealed against the weather, which matters if the rifle lives in a slip or gets used in the wet. The stock arrives with the tubes fitted and ready to use.

STR or CTR, and which colour?

The CTR is the lighter, simpler stock with a single friction lock and no storage, while the STR adds the second lock and the battery tubes for a little more weight. Both come in Black, Flat Dark Earth and Olive Drab Green, with Stealth Gray also offered on the STR. If you're weighing up the family, our stock buying guide lays out the differences.

How is it delivered?

Orders are dispatched from the United Kingdom with free tracked UK delivery, and you'll get tracking by email when it ships. If a part turns out to be the wrong fit, see our returns policy or get in touch and we'll help sort it.