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Ar-15 Str Stock Assy Collapsible Mil-Spec - Ar-15 Str Stock Assy Collapsible Mil-Spec Black
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$125.99
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SKU: 078000224
Overview
Built for AR-15 setups that benefit from added storage and a more stable shoulder interface, this collapsible mil-spec stock combines battery compartments with a wider cheekweld for improved comfort. The rear storage tubes accept two AA or two CR-123 batteries, and rubber caps help keep the compartments protected while still allowing quick access. It also includes integral sling loops plus QD sling swivel sockets on both sides, giving it flexible carry options for field use. A friction locking mechanism is designed to reduce wobble on the buffer tube, while the detachable rubber buttpad adds another layer of secure contact.
Why Hunters Choose the Brownells
Integrated Battery
Storage tubes hold two AA
Wider Cheekweld
Adds comfort during extended use
Dual Sling
Loops and QD swivel sockets
Friction Locking
Mechanism helps reduce wobble on
Detachable Rubber
Butt pad adds a secure
Key Features
- Enhanced STR buttstock design based on the Magpul CTRA stock
- Two side battery storage tubes hold two AA or two CR-123 batteries
- Wider cheekweld and detachable rubber buttpad add comfort
- Rubber caps help protect storage compartments from water incursion
- Two integral sling loops plus pushbutton QD sling swivel sockets on each side
- Friction locking mechanism is designed to minimize wobble on the buffer tube
Best Used For
- Hunters who want onboard battery storage for field-ready AR-15 setups
- Users needing a wider cheekweld for more comfortable shoulder placement
- Shooters running pushbutton QD slings or traditional sling loop attachments
- Anyone seeking a collapsible stock with a friction lock to reduce wobble
Specifications
| Available Colors | Black, Dark Earth, O.D. Green |
|---|---|
| Battery Compatibility | Two AA or two CR-123 batteries |
| Battery Storage Tubes | Two |
| Color | Black |
| Friction Locking Mechanism | Yes |
| Height | 5.25 in (13.3 cm) |
| Length Of Pull Adjustment Range | 3.25 in (8.3 cm) |
| Material | Reinforced nylon polymer |
| Mil Spec | Yes |
| Overall Length | 7.25 in (18.4 cm) |
| Qd Sling Swivel Socket | Yes, on each side |
| Rubber Cheek Pad | Detachable, 0.30 in thick |
| Sling Loops | Two integral 1.25 in sling loops |
| Stock Type | Collapsible |
| Water Resistance | Rubber caps resist water incursion |
| Weight | 12.5 oz (354 g) |
Pros
- Integrated battery storage tubes hold two AA or two CR-123 batteries.
- Wider cheekweld adds comfort during extended use.
- Dual sling loops and QD swivel sockets support flexible carry options.
- Friction locking mechanism helps reduce wobble on the buffer tube.
- Detachable rubber butt pad adds a secure shoulder interface.
Considerations & Trade-offs
- The integrated battery storage tubes add bulk compared with a simpler collapsible stock, so the profile is less minimal.
- Storage access is convenient, but the rubber caps are a separate part that must be opened and closed when retrieving batteries.
- The wider cheekweld and detachable rubber buttpad add comfort and feel, but they also make this stock more specialized than a basic utility option.
- The friction locking mechanism is designed to reduce wobble, but the stock still depends on proper buffer tube compatibility and adjustment range for fit.
Suggested Comparisons
- AR-15 collapsible stocks
- AR-15 stock accessories
- AR-15 sling attachment hardware
- AR-15 battery storage accessories
Suggested Accessories
- AR-15 buffer tube
- Push-button QD sling swivel
- AA batteries
- CR123 batteries
Frequently Asked Questions
What makes the STR stock different from a standard collapsible AR-15 stock?
The STR is described as an enhanced version of the Magpul CTR stock. It adds two side battery storage tubes, a wider cheekweld, two integral sling loops, and a socket for a pushbutton QD sling swivel on each side.
What batteries can be stored in the stock?
The storage tubes are described as holding either two AA batteries or two CR-123 batteries.
Does the stock have any feature to help keep the storage compartments protected?
Yes. The rear rubber caps are described as helping resist water incursion while still popping off easily for access.
What sling attachment options are built into the stock?
The stock has two integral sling loops and a socket for a pushbutton QD sling swivel on each side.
What are the listed dimensions and adjustment range?
The listed specs give an overall length of 7 1/4 inches, a height of 5 1/4 inches, and a length-of-pull adjustment range of 3 1/4 inches.