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Mil-Spec Buffer Tube Assembly
Mil-Spec Buffer Tube Assembly
Mil-Spec Buffer Tube Assembly
Mil-Spec Buffer Tube Assembly
Mil-Spec Buffer Tube Assembly
Mil-Spec Buffer Tube Assembly
None
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DOUBLE STAR - Mil-Spec Buffer Tube Assembly

7 Reviews
Mil-Spec Buffer Tube Assembly
Brownells #
100004978
MFR #
AR355M
UPC
841348103516
$27.99
Coupon Code
Purchase Limit Help

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International purchase information

Specifications
Buffer Tube Type:
Mil-Spec
Item Length (Inches):
5.250
Item Height (Inches):
11.000
Item Weight (lbs):
0.370
Quantity:
1
Item Width (Inches):
2.000
Make Model Fit:
AR-15.Universal;AR-308.Universal
Restriction
Gun Part Restrictions:
Yes
Prop 65 restriction:
WARNING: Cancer and Reproductive Harm-www.P65Warnings.ca.gov
View US State Restrictions
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International purchase information

What is the DOUBLE STAR - Mil-Spec Buffer Tube Assembly?

Machined aluminum receiver extension tubes accept an M4-style adjustable carbine buttstock. Six precision-machined notches on the underside provide plenty of options for setting length-of-pull. Perfect for a custom build, installing a mil-spec or commercial stock on a civilian carbine, or updating a fixed-stock rifle with an adjustable M4 stock. Machined from a lightweight aluminum extrusion then hardcoat anodized, and dry film lube-coated inside for smooth movement of the buffer and buffer spring. Requires carbine recoil spring and buffer, lock ring, and receiver plate, all available separately.


SPECS: Aluminum, hardcoat anodized, matte black. 7-7?8" (20cm) long. Mil-spec – 7-3/16” (18.25cm) long, 1.145" O.D.

See all of our AR15s and AR15 parts here.

Gun Part Restriction
Gun Parts have restricted shipping to CA.

Prop 65WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov

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AR-15/M16 BUFFER TUBES REVIEWS

4.4
7 Reviews
5 Stars
71%
4 Stars
0%
3 Stars
29%
2 Stars
0%
1 Stars
0%
Reviews Summary
Customers generally appreciate the AR-15/M16 buffer tubes for their fit, sturdiness, and value for money, with many noting they work well on new builds. However, some issues arise regarding the length and mil-spec accuracy, as a few reviewers experienced compatibility problems with Magpul stocks. Overall, they are deemed a good buy despite minor drawbacks.
What Reviewers Are Saying
Product Quality
70%
Reviewers frequently highlight the sturdiness and reliability of the buffer tubes, noting that they exceed expectations in terms of fit and finish, especially for the price. Many state that they function perfectly in builds, leading to a general satisfaction with the product's quality.
Compatibility Issues
43%
Several reviews pinpoint specific compatibility concerns with certain stock brands, particularly Magpul. Issues such as length discrepancies and engagement problems with the stock detent suggest that while the tubes are well-made, they may not align with all components as expected.
Value for Money
60%
Many customers consider the buffer tubes to be a great value relative to their price. The cost-effectiveness coupled with the decent performance makes these tubes appealing for those building their AR rifles.
Backorder Experience
28%
A few reviews mention that the product was on backorder, which created some initial inconvenience. However, they express that it was worth the wait, indicating overall satisfaction with the end result despite the delays.
5
AR parts
Worth the wait, was on backorder. Already purchased the stock.
Would you recommend this? Yes, I would recommend to a friend
by BELLFIELD CHANDLER on October 12, 2024
Verified Purchase
Was this review helpful? 0
5
Feels very sturdy.
Used on a new build. Extension feels very sturdy, perhaps even slightly heavier that some other extensions on the market. Magpul stock fits nice and snug.
by Tim on April 08, 2015
Was this review helpful? 1
5
Good for the price
Though this buffer tube isn't really mil spec its still got good fit and finish for the price. I recommend it.
by Unfriendly Fire on August 26, 2014
Was this review helpful? 0
5
Great product for the money
I've mounted this on a new AR build. It worked perfectly. No issues whatsoever. It looks good, functions perfectly, and for the money, this was a good buy. I will certainly buy many more of these.
by gman on February 17, 2013
Was this review helpful? 0
5
Not really Mil-Spec
Since this receiver extension has an angled end it will not allow the magpul MOE stock detent to engage in the first hole in the stock. This prevents the MOE stock to fully collapse. Essentially the extension bottoms out because the end of MagPul stocks is closed, not open. Aside from that it is a nice receiver extension.
by Brad on February 12, 2010
Was this review helpful? 1
View All 7 Reviews
Customer Questions
1 Question