Geissele Automatics BUIS Folding Sight Set Black
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Geissele
Overview
The Geissele Automatics BUIS Folding Sight Set in Black is a robust iron sight solution designed for versatility and reliability. Constructed from 6061-T6 aluminum, these folding sights provide a sturdy option that can be easily stowed when not in use, yet remain ready for quick deployment when needed. This set is particularly suitable for builds featuring a carbine gas system and chambered in 5.56 NATO, making it a popular choice among builders looking for dependable sighting solutions.
Specifications
Build history on GunPartPicker
Builders have been adding the Geissele Automatics BUIS Folding Sight Set Black to their builds on GunPartPicker since February 2026. All time, it ranks #58 of the 153 iron sights builders have added. Builds with this iron sight are mostly chambered in 5.56 NATO (86%), split between carbine-length (40%) and mid-length (30%) gas systems, and mostly AR-15 (93%).
It was out of stock everywhere we track for all of September 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $162.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 30+ retailers
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Read the guide: AR-15 Iron Sights Guide →Frequently Built With
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Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all 1 →Builds in the community that include the Geissele Automatics Llc Buis Folding Sight Set Black
| Build | Parts | Total |
|---|---|---|
 | 29 | $5451.15 |
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