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BRN AR-15 MIL-SPEC Collapsible Stock Assembly Black
BRN AR-15 MIL-SPEC Collapsible Stock Assembly Black
BRN AR-15 MIL-SPEC Collapsible Stock Assembly Black
BRN AR-15 MIL-SPEC Collapsible Stock Assembly Black
BRN AR-15 MIL-SPEC Collapsible Stock Assembly Black
BRN AR-15 MIL-SPEC Collapsible Stock Assembly Black
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BROWNELLS - BRN AR-15 MIL-SPEC Collapsible Stock Assembly Black

38 Reviews
BRN AR-15 MIL-SPEC Collapsible Stock Assembly Black
Brownells #
080000941
MFR #
CARM4RIB AR15 M4 STOCK ASSEMBL
UPC
050806110243
$69.53
Coupon Code
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Specifications
Buttstock Style:
Collapsible
Buttstock Fit:
Mil-Spec
Material:
Polymer
Color:
Black
Make Model Fit:
AR-15.Universal
Restriction
Restricted Part:
Yes
View US State Restrictions
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What is the BROWNELLS - BRN AR-15 MIL-SPEC Collapsible Stock Assembly Black?

AR-15 COLLAPSIBLE STOCK ASSEMBLY (MIL-SPEC)

Collapsible buttstock similar to the current US GI M4 carbine stock provides convenient six-position length-of-pull adjustment to fit different-size shooters, including those wearing body armor. Ready to install on any standard AR-15 rifle or carbine lower receiver; includes buffer tube, receiver lock plate, lock nut, toe-mounted steel sling loop, carbine recoil spring and buffer. Buttstock is made from extremely tough, fiberglass-reinforced, injection-molded nylon to resist impact, heat, moisture, extreme cold, and most cleaning solvents. Steel lock nut has four square notches and pre-cut detents for staking to lock plate. Available with Mil-Spec (nominal 1.14" O.D.) receiver extension tube. Stock interior diameter is matched to buffer tube O.D. for a snug fit that eliminates un wanted play and rattles.




SPECIFICATIONS:

  • Material: Aluminum and Fiberglass-Reinforced, Injection-Molded Nylon
  • Color: Matte Black
  • Length: 8-3/4" Overall Collapsed
  • Length: 11-3/4" Overall Extended
  • Kit Includes:
    • Carbine Buffer Tube (MIL-SPEC)
    • Carbine Buttstock (MIL-SPEC)
    • Carbine Buffer and Spring
    • AR-15 End Plate
    • Castle Nut

See all of our AR15s and AR15 parts here.

Restricted Part
Please check with your state regulations for ownership of Restricted Parts. May require documentation.

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AR-15 STOCK ASSY COLLAPSIBLE MIL-SPEC REVIEWS

4.4
38 Reviews
5 Stars
71%
4 Stars
18%
3 Stars
0%
2 Stars
5%
1 Stars
5%
Reviews Summary
The AR-15 Stock Assembly from Brownell's receives mixed feedback. Many appreciate the solid construction and value for money, highlighting its ease of installation and minimal wobble. However, some reviewers express disappointment with the butt plate's quality and construction consistency. Overall, it's a decent choice for those seeking an affordable mil-spec stock.
What Reviewers Are Saying
Product Quality
65%
Many customers praise the quality of the AR-15 stock assembly, noting that it meets their expectations and performs well for its price point. However, some have encountered issues with specific parts like the butt plate and buffer tube, suggesting inconsistency in manufacturing across batches.
Installation and Fit
70%
Reviewers generally find the stock easy to install and appreciate its snug fit once adjusted. The design ensures minimal wobble, which enhances the overall user experience. A few customers report variability, but most agree that it fits well on their AR builds.
Value for Money
75%
The price point of this stock assembly is highlighted repeatedly, with several customers feeling they received good value for the quality provided. Many users compare it favorably against more expensive brands, asserting it holds its own without sacrificing functionality.
Aesthetics and Design
30%
While most reviews focus on functionality, a few customers note the stock's design varies from expectations set by product images, particularly regarding visual elements and finishing. Some express disappointment in aesthetic aspects but still recognize the stock's effective performance.
Shipping and Customer Service
40%
Numerous reviews mention Brownell's solid reputation and reliable customer service, highlighting efficient shipping practices and overall satisfaction with the purchasing experience. This builds confidence among repeat customers.
5
Perfect
I installed this butt stock on a Bearcreek lower with no problems good quality it's just a basic M4 collapsible stock I will buy again for the next AR build thanks Brownells.
Would you recommend this? Yes, I would recommend to a friend
by Matthew M. on January 31, 2026
Verified Purchase
Was this review helpful? 0
5
AR-15 Stock Assembly
No wobble, nice and tight........great collapsible stock!!!!
by Eric Story on November 16, 2023
Verified Purchase
Was this review helpful? 1
5
Works As It Should
Installs, adjusts, and functions as it should.
by Ride Of The Valkyries on February 07, 2022
Was this review helpful? 2
5
AR15 collapsible stock
I haven't used this one yet but I have bought several in the past and was pleased with this item. For a occasional shooter this is ideal. It is tight when extended and stays firm.
by JimE on February 04, 2022
Was this review helpful? 2
5
Always good quality
there really isn't anything bad to say about this stock. Good quality and fast shipping by Brownells
by cessna152 on January 10, 2022
Was this review helpful? 1
View All 38 Reviews
Customer Questions
0 Questions