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Magpul ACS Carbine Stock Mil-Spec
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$89.99
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SKU: WX2*0653178
Overview
Designed as a drop-in replacement for a mil-spec AR carbine receiver extension, this stock is aimed at shooters who want a more stable, more organized setup without adding unnecessary bulk. Its anti-snag profile, shielded release latch, and supplemental friction lock are built to help reduce unwanted movement and accidental activation, while the sloping cheek weld and thick rubber butt-pad support a more secure interface with the rifle. Storage is a practical part of the design, with dual rear-accessible battery tubes and an additional compartment in the tail for carrying spare power. For hunters and field users running a carbine with compatible receiver-mounted sling attachments, it offers a functional balance of comfort, control, and onboard storage.
Why Hunters Choose the Magpul
Drop-in Replacement
No receiver extension included
Supplemental Friction
Lock helps minimize stock movement
Sloping Cheek
Weld offers a wide contact
Dual Water-resistant
Battery tubes and buttstock compartment
Shielded Release
Latch helps reduce snagging and
Key Features
- Drop-in replacement for AR platforms using a mil-spec sized carbine receiver extension tube.
- Shielded release latch helps prevent snagging and accidental activation.
- Supplemental friction lock minimizes stock movement for added stability.
- Sloping cheek weld provides a wide contact surface for user comfort.
- Dual water-resistant battery storage tubes hold up to 3 CR123 or 2 AA batteries each.
- Integral buttstock storage compartment includes a positive-latching access door.
- Replaceable rubber butt pad offers an anti-slip surface and helps prevent slippage.
Best Used For
- Hunters building a mil-spec AR setup who want a more stable, adjustable shoulder fit.
- Users needing onboard battery storage for lights or optics during extended range sessions.
- Shooters who prefer a cheek weld with a wider contact surface for added comfort.
- Field users who want a streamlined stock profile that helps reduce snagging on gear.
- Hunters using body armor or modular gear who need a rubber butt-pad with anti-slip contact.
Specifications
| Additional Storage | Storage compartment in tail of stock with positive latching access door on right hand side |
|---|---|
| Battery Capacity Per Tube | up to 3 CR123 lithium or 2 AA batteries |
| Battery Storage | 2 water-resistant battery storage tubes |
| Butt Pad | Thick rubber butt-pad / replaceable rubber butt pad |
| Cheek Weld | Sloping cheek weld |
| Country Of Origin | Made In The USA |
| Fit | Mil-Spec |
| Friction Lock | Supplemental friction lock |
| Itar Controlled | Yes |
| Length Of Pull Adjustment Range | 3.25 in |
| Mount Type | mil.-spec sized carbine receiver extension tube (not included) |
| Shielded Release Latch | Yes |
| Sling Attachment Compatibility | Compatible with receiver-mount sling attachments |
| Weight | Approx. 14 ozs. |
Pros
- Drop-in replacement for mil-spec carbine receiver extensions, with no receiver extension included.
- Supplemental friction lock helps minimize stock movement for a more stable shoulder fit.
- Sloping cheek weld offers a wide contact surface for added user comfort.
- Dual water-resistant battery tubes and buttstock compartment provide multiple storage options.
- Shielded release latch helps reduce snagging and accidental operation.
- Thick rubber butt pad offers an anti-slip surface and helps prevent slippage.
Considerations & Trade-offs
- Requires a mil-spec sized carbine receiver extension tube, which is not included.
- Battery storage is useful, but it adds bulk compared with a simpler stock setup.
- The stock is designed for AR platforms and may not suit users looking for a lighter or more minimalist profile.
- Length of pull adjustment is limited to a 3.25-inch range, so fit is adjustable but not fully customizable.
Suggested Comparisons
- AR carbine stocks
- Mil-spec receiver extensions
- AR stock accessories
- Sling attachment hardware
Suggested Accessories
- Sling attachment
- CR123 lithium batteries
- AA batteries
- Receiver extension tube
Frequently Asked Questions
Will this stock fit a standard AR carbine receiver extension tube?
It mounts on a mil-spec sized carbine receiver extension tube, which is not included.
Does the ACS stock include storage for batteries or other small items?
Yes. It has two rear-accessible, water-resistant battery storage tubes and an integral storage compartment in the butt of the stock. Each side tube stores up to 3 CR123 lithium or 2 AA batteries.
What features help reduce stock movement or accidental activation?
The stock includes a supplemental friction lock to minimize wobble, and a shielded release latch to help prevent snagging and accidental operation.
Is the butt pad replaceable, and what is it designed to do?
Yes. The product description says it has a replaceable rubber butt pad with an anti-slip surface, and the long description notes it is intended to help prevent slippage.
Does the product list sling attachment compatibility?
Yes. The long description states that it is compatible with receiver-mount sling attachments.