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Geissele
Overview
The Geissele Automatics Super 42 Tungsten Buffer Weight is an H3 carbine buffer designed to improve the cycling of your AR-15 by adding weight to the buffer system. This added weight helps to reduce felt recoil and improve overall reliability, particularly in builds utilizing a carbine gas system and firing 5.56 NATO rounds. You'll often find this buffer in builds aimed at maximizing performance for tactical or competition use.
Builders on GunPartPicker first added the Geissele Automatics Super 42 Tungsten Buffer Weight to a build in January 2026. Builds with this buffer are nearly all chambered in 5.56 NATO, nearly all on carbine-length gas, and split between AR-15 (57%) and AR-10 (43%).
Today the one retailer we track is out of stock. Listed prices start at $32 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
We ranked every buffer by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Buffer Guide →Check it against the live catalog:
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Geissele Automatics Super 42 Tungsten Buffer Weight
| Build | Parts | Total |
|---|---|---|
![]() | 21 | $2608.99 |
![]() | 25 | $2259.43 |
![]() | 25 | $2259.43 |
![]() | 13 | $1155.40 |
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