Tacfire Buffer Tube KIT, Black - MAR049-B
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TacFire
Overview
The Tacfire Buffer Tube Kit is a complete parts kit designed for carbine-length builds, featuring a Mil-Spec buffer tube that ensures compatibility with a wide range of stocks and components. Constructed from durable 6061-T6 aluminum and finished with hardcoat anodizing, this assembly provides the necessary support for reliable cycling and durability in rigorous conditions. This buffer tube kit is commonly found in builds that utilize a carbine gas system and chamber 5.56 NATO caliber, making it a versatile choice for those looking to enhance their AR-15 setup.
Specifications
August 2026 on GunPartPicker
Tacfire Buffer Tube KIT, Black - MAR049-B was the tenth most added buffer tube assembly on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it is the tenth most added buffer tube assembly on the site. Builds with this buffer tube assembly 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 August 2026, and today all 6 retailers we track have it in stock. The best price crept up from $21.72 to $23.83 over August 2026. Buying today, the lowest price is $21.72 at BattleHawk Armory, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
Not sure which buffer tube assembly to pick?
We ranked every buffer tube assembly by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Buffer Tube Assembly Guide →Frequently Built With
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Builds Featuring This Part
See all 4 →Builds in the community that include the Tacfire Buffer Tube Kit, Black - MAR049-B
| Build | Parts | Total |
|---|---|---|
 | 24 | $944.34 |
 | 14 | $1058.52 |
 | 22 | $783.56 |
 | 25 | $928.53 |
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