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Ar-15 Acs Stock Assy Collapsible Mil-Spec - Ar-15 Acs Stock Assy Collapsible Mil-Spec Black
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$134.99
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SKU: 078000220
Overview
Built as a drop-in replacement for a standard USGI M4 collapsible stock, this model is aimed at shooters who want added storage and a more secure cheekweld on a carbine setup. Its extra-wide comb includes removable battery compartments sized for 2 AA or 3 CR-123 batteries, while molded rubber caps help seal those compartments against water and dust. The streamlined exterior is designed to reduce snagging on clothing, slings, or vegetation, which is useful when moving through brush or working around vehicles. Brownells offers it in reinforced molded polymer with an advanced dual-locking lever and a black finish.
Why Hunters Choose the Brownells
Drop-in Replacement
For standard USGI M4 collapsible
Extra Storage
Compartments hold 2 AA or
Wide, Contoured
Comb supports a secure, comfortable
Smooth Exterior
Contours help reduce snagging on
Advanced Dual-locking
Lever adds a secure adjustment
Key Features
- Drop-in replacement for standard USGI M4 collapsible stock
- Advanced dual-locking lever for secure adjustment
- Smooth exterior contours help reduce snagging on clothing, slings, or vegetation
- Extra-wide comb provides a contoured cheekweld area
- Removable battery storage compartments hold 2 AA or 3 CR-123 batteries
- Secure molded rubber caps help keep water and dust out of compartments
- Reinforced molded polymer construction in black, Dark Earth, or O.D. Green
Best Used For
- Hunters wanting a drop-in stock replacement with added storage for batteries and small field essentials.
- Users who value a secure cheekweld during steady aiming and controlled shooting positions.
- Carbine owners moving through brush, vehicles, or tight spaces where snag reduction matters.
- Shooters needing a collapsible stock with dual-locking leverage for a more secure fit.
- Outdoor users who want compartment caps that help keep stored items covered from dust and water.
Specifications
| Battery Capacity | 2 AA or 3 CR-123 batteries |
|---|---|
| Cheekweld | Secure, comfortable cheekweld |
| Color | Black, Dark Earth, or O.D. Green |
| Compatibility | Standard USGI M4 collapsible stock |
| Exterior Contours | Smooth, streamlined exterior contours |
| Height | 5 1/4 in (13.3 cm) |
| Locking Mechanism | Advanced dual-locking lever |
| Material | Reinforced molded polymer |
| Overall Length | 7 7/8 in (20 cm) |
| Stock Type | Collapsible |
| Storage Options | Removable battery storage compartments |
| Weight | 13.6 oz (385 g) |
Pros
- Drop-in replacement for standard USGI M4 collapsible stock
- Extra storage compartments hold 2 AA or 3 CR-123 batteries
- Wide, contoured comb supports a secure, comfortable cheekweld
- Smooth exterior contours help reduce snagging on gear or vegetation
- Advanced dual-locking lever adds a secure adjustment interface
- Molded rubber caps help keep water and dust out of compartments
Considerations & Trade-offs
- Designed as a drop-in replacement for standard USGI M4 collapsible stocks, so fit is tied to that platform rather than a universal application.
- The extra-wide comb and storage compartments add bulk compared with a simpler collapsible stock, which may matter if you prefer a slimmer profile.
- Battery storage is limited to 2 AA or 3 CR-123 batteries, so it provides organized carry but not large-capacity storage.
- Molded rubber caps help seal the compartments, but they also add another component to manage when accessing stored items.
Suggested Comparisons
- Adjustable carbine stocks
- Mil-spec AR-15 stock assemblies
- AR-15 storage stocks
- AR-15 furniture and stock accessories
Suggested Accessories
- Rifle sling
- Spare batteries
- Battery storage organizer
- Cleaning kit
Frequently Asked Questions
What does this ACS stock replace on an AR-15 carbine?
It is described as a drop-in replacement for a standard USGI M4 collapsible stock.
Does this stock provide storage space?
Yes. The description says it includes removable battery storage compartments that run the full length of the extra-wide comb and hold 2 AA or 3 CR-123 batteries.
What kind of cheekweld does the stock offer?
The product description says it provides a wide, contoured area for a secure, comfortable cheekweld.
Will the stock help reduce snagging on gear or clothing?
The description says the smooth, streamlined exterior contours are designed to help prevent snagging on clothing, a sling, or vegetation.
What material and finish options are listed?
The specs list reinforced molded polymer, with Black, Dark Earth, or O.D. Green color options. This listing is for Black.