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Aero Precision
Overview
The Aero Precision AR-15 H3 Buffer is designed to provide optimal performance for your AR-15 platform. With its heavier weight, it helps to reduce felt recoil and improve cycling reliability, making it a solid choice for builds that benefit from a more controlled shooting experience. This buffer is commonly found in mid-length gas system configurations chambered in 5.56 NATO, where it can enhance overall function and accuracy.
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Aero Precision AR-15 H3 Buffer was the seventh most added buffer on GunPartPicker in August 2026, behind the LMT AR-15 Buffer KIT - Mil-Spec, with about 2% of all buffers added to builds. Down from #6 in May, June and July. Builds with this buffer are split between 5.56 NATO (44%) and .223 Wylde (25%), split between mid-length (46%) and carbine-length (31%) gas systems, and mostly AR-15 (75%, then AR-10 25%).
It was out of stock everywhere we track for all of August 2026, and today none of the 6 retailers we track has it in stock right now. Listed prices start at $38.24 at AT3 Tactical for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
We ranked every buffer by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Buffer Guide →The part most often added in each category by the 216 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 H3 Buffer
| Build | Parts | Total |
|---|---|---|
 | 27 | $7836.26 |
 | 27 | $1946.75 |
 | 33 | $2917.77 |
 | 27 | $4253.00 |
 | 32 | $5937.97 |
 | 20 | $997.92 |
 | 27 | $3392.77 |
 | 23 | $1804.23 |
 | 23 | $1558.83 |
 | 24 | $1164.21 |
| 25 | $3604.95 |
 | 30 | $3836.02 |
4 global ratings
Top reviews
Aero Precision H3 buffer at 5+ oz works on heavier-load builds. Inside weights dont rattle. Phosphate steel body wont show wear like aluminum. Fits any milspec carbine extension. Solid replacement for an H or H1 if your gun is undercycling.
Aero Precision H3 buffer at 5+ oz is well made for hot loads. Inside weights dont rattle. Phosphate steel body wont show wear. Fits any milspec carbine extension. The heavier weight slows the bolt cycle for smoother shooting.
Aero Precision H3 buffer at 5+ oz works correctly. Inside weights dont rattle. Price is a touch steep for an H3 buffer when other brands offer the same weight for less. Function is what you need - heavier weight for hot loads.
3 tungsten weights inside, machined right and the bumper is solid rubber. swapped this into a 14.5 mid length and ejection cleaned up to a tight 4 oclock pile. aero hits price and quality both
