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Aero Precision
Overview
The Aero Precision AR .308 Rifle Buffer Spring is designed specifically for AR-10 platforms, providing the necessary spring tension for reliable cycling during operation. With a rifle length, it ensures optimal performance in builds that utilize a mid-length gas system and chamber .308 Winchester cartridges. This buffer spring is commonly found in precision-oriented builds where reliability and smooth operation are paramount.
Prices checked
Aero Precision AR .308 Rifle Buffer Spring ranked #32 of the 52 buffer springs builders added on GunPartPicker in October 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #32 of the 107 buffer springs builders have added. Builds with this buffer spring are mostly chambered in .308 Win (63%, then 5.56 NATO 38%), mostly on rifle-length gas (60%, then mid-length 40%), and split between AR-10 (55%) and AR-15 (36%).
It was out of stock everywhere we track for all of October 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $8.99 at Brownells for when it comes back.
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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