Tacfire AR-15 Mil-Spec Buffer Tube KIT
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TacFire
Overview
The Tacfire AR-15 Mil-Spec Buffer Tube Kit is a complete parts kit designed to provide a reliable foundation for your build. Made from durable 6061-T6 aluminum and finished with hardcoat anodization, this buffer tube meets Mil-Spec standards, ensuring compatibility with a wide range of stock options and enhancing the overall performance of your rifle. This kit is commonly found in mid-length gas system builds chambered in 5.56 NATO, making it an excellent choice for those looking to create a robust and functional firearm.
Specifications
Available Merchants(5)
Prices checked
Price Alert
October 2026 on GunPartPicker
Tacfire AR-15 Mil-Spec Buffer Tube KIT was the tenth most added buffer tube assembly on GunPartPicker in October 2026, behind the Timber Creek AR Buffer Tube, Black - AR BT BL, with about 2% of all buffer tube kits added to builds. Up from #15 in September. Builds with this buffer tube assembly are mostly chambered in 5.56 NATO (74%, then .223 Wylde 15%), split between mid-length (47%) and carbine-length (25%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today 4 of the 5 retailers we track have it in stock. It dipped to $19.89 at BattleHawk Armory for a stretch in October 2026, under its usual $21.72, so sales do come around. Buying today, the lowest price is $22.18 at KY Gun Company, above October's low of $19.89, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Read the guide: AR-15 Buffer Tube Assembly Guide →Check it against the live catalog:
Frequently Built With
The part most often added in each category by hundreds of builds that include this one
Timber Creek Outdoors Ambidextrous Safety Selector - Black
ALG Defense Qms AR-15 Trigger Set
Rise Armament AR-15 Magazine Release Button - Rise Red
Strike Industries Extended Bolt Catch
Wilson Combat AR-15 Lower Receiver Forged
Magpul MOE K2 Grip Polymer Gray
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all builds →Builds in the community that include the Tacfire Ar-15 Mil-Spec Buffer Tube Kit
| Build | Parts | Total |
|---|---|---|
 | 17 | $786.61 |
 | 32 | $7182.74 |
 | 20 | $2129.26 |
 | 16 | $606.78 |
 | 19 | $1257.96 |
 | 25 | $1349.44 |
 | 16 | $1283.68 |
| 19 | $1257.96 |
 | 25 | $2320.93 |
 | 16 | $1006.31 |
 | 21 | $1400.87 |
 | 21 | $1526.99 |
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