Tacfire 6-Position Buffer Tube Spring for AR-15 .223 Rem/5.56 Rifle, Black - MAR046
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TacFire
Overview
The Tacfire 6-Position Buffer Tube Spring is designed specifically for carbine buffer tube setups in AR-15 platforms, providing the essential spring tension needed for reliable cycling. This spring is a vital component that ensures your bolt carrier group operates smoothly, making it suitable for builds that utilize a mid-length gas system and chamber the 5.56 NATO caliber. You’ll often find this spring in configurations aimed at optimizing performance and reliability in semi-automatic applications.
Specifications
Tacfire 6-Position Buffer Tube Spring for AR-15 .223 Rem/5.56 Rifle, Black - MAR046
Build history on GunPartPicker
Builders have been adding the Tacfire 6-Position Buffer Tube Spring for AR-15 .223 Rem/5.56 Rifle, Black - MAR046 to their builds on GunPartPicker since February 2026. All time, it ranks #47 of the 96 buffer springs builders have added.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today all 5 retailers we track have it in stock. The best price drifted down from $3.78 to $2.17 over August 2026 without a real sale. Buying today, the lowest price is $2.17 at KY Gun Company, which matches the best price we saw in August.
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 3 builds that include this one
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LBE Unlimited Aluminum AR-15 Trigger Guard, Black - AR15TG
Builds Featuring This Part
See all 1 →Builds in the community that include the Tacfire 6-Position Buffer Tube Spring for AR-15 .223 Rem/5.56 Rifle, Black - MAR046
| Build | Parts | Total |
|---|---|---|
 | 19 | $784.14 |
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