Radical Firearms Carbine Buffer Tube
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Radical Firearms
Overview
The Radical Firearms Carbine Buffer Tube is a Mil-Spec tube designed specifically for carbine-length gas systems, ensuring compatibility with a variety of AR-15 builds. Constructed from durable 7075-T6 aluminum and finished with a nitride coating, this black buffer tube provides a reliable foundation for your stock assembly while maintaining a lightweight profile. It is commonly found in builds utilizing a carbine gas system and chambered in 5.56 NATO, making it a practical choice for standard configurations.
Specifications
September 2026 on GunPartPicker
Radical Firearms Carbine Buffer Tube ranked #29 of the 49 buffer tubes builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #25 of the 63 buffer tubes builders have added. Builds with this buffer tube are nearly all chambered in 5.56 NATO, nearly all on carbine-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today the one retailer we track has it in stock. Prices barely moved in September 2026, holding around $19.99, so there haven't been real sales lately. Buying today, the lowest price is $19.99 at Primary Arms, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 33 builds that include this one
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TPS Arms AR-15 Mag Catch Assembly, Black - AR-1031
Builds Featuring This Part
See all 1 →Builds in the community that include the Radical Firearms Carbine Buffer Tube
| Build | Parts | Total |
|---|---|---|
 | 26 | $1605.59 |
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