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Aero Precision
Overview
The Aero Precision AR-15 Carbine Recoil Buffer Spring is specifically designed to provide reliable cycling in carbine-length gas systems. With its tailored length, this spring helps ensure optimal operation and reduces felt recoil, contributing to a smoother shooting experience. It's commonly found in builds featuring a mid-length gas system and chambered in 5.56 NATO, making it a solid choice for those configurations.
Aero Precision AR-15 Carbine Recoil Buffer Spring 17-7 SS ranked #18 of the 58 buffer springs builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #15 of the 90 buffer springs builders have added. Builds with this buffer spring are split between 5.56 NATO (50%) and 6.5 Grendel (33%), split between rifle-length (33%) and carbine-length (33%) gas systems, and mostly AR-15 (86%, then AR-10 14%).
It was hard to find in August 2026, in stock on only 5 of the 26 days we checked, and today only Stag Arms has it in stock. It dipped to $4.34 at Brownells for a stretch in August 2026, well under its usual $4.99 to $5.39, so sales do come around. Buying today, the lowest price is $6 at Stag Arms, above August's low of $4.34, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 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 →The part most often added in each category by the 37 builds that include this one
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Aero Precision Ar-15 Carbine Recoil Buffer Spring 17-7 Ss
| Build | Parts | Total |
|---|---|---|
 | 24 | $1167.20 |
 | 23 | $1543.67 |
 | 19 | $1374.96 |
 | 23 | $967.06 |
| 21 | $1346.42 |
 | 23 | $2777.07 |
1 global rating
Top reviews
Aeros 17-7 stainless carbine buffer spring is a noticeable upgrade over a basic music wire spring. Quieter cycle and less spring twang you can feel through the stock. Fits any milspec carbine extension. Aeros QC keeps the coil spacing consistent end to end.
