Double Star Mil-Spec Buffer Tube Assembly
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DoubleStar
Overview
The Double Star Mil-Spec Buffer Tube Assembly is designed for carbine-length setups, featuring a Mil-Spec buffer tube that fits standard components for reliable performance. Made from aluminum, this assembly provides the structural integrity needed for smooth cycling in your AR-15. This buffer tube assembly is commonly found in builds utilizing a carbine gas system and chambered in 5.56 NATO, making it a solid choice for a wide range of applications.
Specifications
Available Merchants(4)
Prices checked
Price Alert
Build history on GunPartPicker
Builders on GunPartPicker first added the DoubleStar Double Star Mil-Spec Buffer Tube Assembly to a build in February 2026.
It was in stock most days in October 2026, but today only Brownells has it in stock. The best price drifted down from $31.99 to $27.99 over October 2026 without a real sale. Buying today, the lowest price is $27.99 at Brownells, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
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Builds Featuring This Part
See all builds →Builds in the community that include the Double Star Mil-Spec Buffer Tube Assembly
| Build | Parts | Total |
|---|---|---|
 | 24 | $2573.33 |
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