Magpul STR Carbine Buttstock Mil-Spec AR-15 OD Green
Magpul Industries
$80.70
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Magpul Industries
Magpul STR Carbine Buttstock Mil-Spec AR-15 OD Green
The Magpul STR Carbine Buttstock in OD Green is a premium, storage-capable AR-15 stock engineered for shooters who demand stability, versatility, and rugged reliability from their mil-spec carbine platform.
- Drop-in fit for mil-spec carbine receiver extension tubes on AR-15/M4 platforms
- Two water-resistant battery/storage tubes built into the A-frame polymer body
- Enhanced cheek weld geometry for improved sight alignment and shooting comfort
- Shielded lever and friction lock system prevent accidental adjustment under stress
- Reversible push-button QD sling mount plus two integral sling loops for versatile carry
- Replaceable 0.30" rubber butt-pad grips securely even over body armor or plate carriers
Who This Is For
The Magpul STR is ideal for tactical shooters, competitive 3-gun competitors, law enforcement, and serious AR-15 enthusiasts who want a full-featured adjustable stock with onboard storage capability. Its rock-solid lockup and enhanced cheek weld make it a natural upgrade for precision-focused carbine builds, while the OD Green finish suits military-inspired or field-ready rifle configurations.
Specifications
| Brand | Magpul Industries |
|---|---|
| Model | STR Carbine Buttstock |
| Color / Finish | OD Green |
| Compatibility | AR-15 / M4 Mil-Spec Receiver Extension |
| Tube Size | Mil-Spec (1.14" diameter) |
| Storage Tubes | 2 × Water-Resistant Battery/Accessory Tubes |
| Butt-Pad Thickness | 0.30 in (Replaceable Rubber) |
| Sling Attachment | Reversible QD Push-Button + 2 Integral Sling Loops |
| Material | Reinforced Polymer |
| Locking System | Friction Lock + Shielded Operation Lever |
| Country of Origin | Made in the U.S.A. |
| SKU | MAG470-ODG |
Frequently Asked Questions
Will the Magpul STR fit my AR-15's existing buffer tube?
The Magpul STR is designed specifically for mil-spec diameter carbine receiver extension tubes (approximately 1.14" outer diameter). It is not compatible with commercial-spec buffer tubes, which have a slightly larger 1.17" diameter and a different taper. Before purchasing, confirm your lower receiver or existing buffer tube is mil-spec sized — most factory Colt, BCM, Daniel Defense, and similar quality builds use mil-spec tubes by default.
What can I store in the STR's built-in storage tubes?
The two water-resistant storage tubes integrated into the STR's A-frame body are sized to hold standard CR123A batteries, AAA batteries, or small survival/field accessories such as fire starters and cotton. The tubes seal securely to protect contents from moisture, making them particularly useful for backup batteries for weapon lights or optics during extended field use.
How does the STR differ from the Magpul CTR stock?
The Magpul STR and CTR share the same core locking mechanism — including the friction lock and shielded adjustment lever — and deliver the same enhanced cheek weld over a standard mil-spec stock. The key difference is that the STR adds two onboard water-resistant storage tubes, making it slightly larger in profile but significantly more functional for users who need to carry spare batteries or small accessories on the rifle itself. If storage capability isn't a priority, the CTR offers a more streamlined profile at a lower price point.
