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Aero Precision
Overview
The Aero Precision AR-15 Rifle Buffer Spring is designed specifically for the AR-15 platform, providing reliable performance in builds that utilize a rifle-length buffer system. Its length ensures proper cycling and helps maintain optimal operation in conjunction with mid-length gas systems, particularly when chambered in 5.56 NATO. This spring is commonly found in builds that prioritize consistent reliability and smooth recoil management.
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Aero Precision AR-15 Rifle Buffer Spring was the fourth most added buffer spring on GunPartPicker in August 2026, behind the Strike Industries AR Carbine Flat Wire Spring, with about 7% of all buffer springs added to builds. Down from #2 in May, June and July. Builds with this buffer spring are split between 5.56 NATO (50%) and .223 Wylde (25%), mostly on mid-length gas (67%, then pistol-length 33%), and nearly all AR-15.
It was hard to find in August 2026, in stock on only 5 of the 22 days we checked, and today none of the 4 retailers we track has it in stock right now. It dipped to $4.29 at Brownells for a stretch in August 2026, well under its usual $4.99 to $5.99, so sales do come around. Listed prices start at $4.99 at Brownells for when it comes 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 314 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 Rifle Buffer Spring
| Build | Parts | Total |
|---|---|---|
 | 27 | $7872.77 |
 | 23 | $2418.99 |
 | 22 | $2266.54 |
 | 26 | $1746.84 |
 | 13 | $1177.72 |
 | 29 | $1848.89 |
 | 21 | $1274.23 |
 | 22 | $1295.29 |
| 26 | $2043.01 |
 | 26 | $1786.35 |
 | 19 | $626.26 |
 | 23 | $1330.30 |
2 global ratings
Top reviews
rifle length spring for a 20 inch build, aero quality is what you expect at the price. spring tension is consistent across the length, no wonky coils. pairs with a rifle buffer for a smooth full length gas impulse
Aeros rifle length buffer spring works correctly in an A2 stock setup. Coil count and free length match milspec dimensions. Wish it came with a better price tag because the same dimensions in a basic stainless spring run half as much elsewhere.
