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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.
Tacfire 6-Position Buffer Tube Spring for AR-15 .223 Rem/5.56 Rifle, Black - MAR046
Prices checked
Tacfire 6-Position Buffer Tube Spring for AR-15 .223 Rem/5.56 Rifle, Black - MAR046 ranked #20 of the 52 buffer springs builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #42 of the 116 buffer springs builders have added.
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, but today only KY Gun Company has it in stock. Prices barely moved in October 2026, holding around $2.17, with no real sale all month. Buying today, the lowest price is $2.17 at KY Gun Company, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every buffer spring by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Buffer Spring Guide →Check it against the live catalog:
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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 | $863.66 |
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