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Geissele
Overview
The Geissele Automatics Ultra Duty Magazine Release Button is a robust component designed to enhance the functionality of your AR-15. With its durable nitride finish, this black magazine release button provides a reliable and smooth operation, allowing for quick magazine swaps in critical situations. This part is commonly found in builds featuring a mid-length gas system chambered in 5.56 NATO, making it a practical choice for those aiming for performance and efficiency.
Prices checked
Geissele Automatics Ultra Duty Magazine Release Button ranked #15 of the 99 magazine releases builders added on GunPartPicker in October 2026, behind the Troy Industries Ambidextrous AR-15 Magazine Release, with about 1% of all magazine releases added to builds. Up from #16 in September. Builds with this magazine release are mostly chambered in 5.56 NATO (81%, then .223 Wylde 15%), split between mid-length (47%) and carbine-length (42%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today all 5 retailers we track have it in stock. It dipped to $11.70 at AT3 Tactical for a stretch in October 2026, well under its usual $13, so sales do come around. Buying today, the lowest price is $12 at BattleHawk Armory.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every magazine release by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Magazine Release Guide →The part most often added in each category by the 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 Geissele Automatics Ultra Duty Magazine Release Button
| Build | Parts | Total |
|---|---|---|
 | 27 | $8075.41 |
 | 14 | $1059.43 |
 | 26 | $3838.92 |
 | 16 | $1183.05 |
 | 24 | $2404.69 |
 | 27 | $3107.00 |
 | 18 | $1684.08 |
| 21 | $2762.67 |
1 global rating
Top reviews
Geisseles ultra duty mag release button has a noticeably larger paddle face which makes it easier to drop a mag with the trigger finger. The black anodizing is matte and matches their other parts. Internal threading was clean, the spring went together without binding.
