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Geissele
Overview
The Geissele Automatics AR-15 Maritime Bolt Catch is designed for enhanced functionality in demanding environments, featuring a unique design that allows for easier manipulation even with gloves or in adverse conditions. Made from steel with a phosphate finish, this bolt catch is built to withstand rigorous use while maintaining reliability. This component is commonly found in builds with a mid-length gas system chambered in 5.56 NATO, making it an excellent choice for those seeking robust performance in their AR-15 setup.
Geissele Automatics AR-15 Maritime Bolt Catch Steel Black was the second most added bolt catch on GunPartPicker in August 2026, behind the Strike Industries Extended Bolt Catch, with about 9% of all bolt catches added to builds. That's its 4th straight month at #2. Builds with this bolt catch are mostly chambered in 5.56 NATO (83%, then .223 Wylde 9%), split between mid-length (43%) and carbine-length (38%) gas systems, and mostly AR-15 (86%, then AR-10 14%).
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today all 8 retailers we track have it in stock. It dipped to $21.54 at Brownells for a stretch in August 2026, well under its usual $27.21 to $27.48, so sales do come around. Buying today, the lowest price is $27.21 at KY Gun Company, above August's low of $21.54, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
We ranked every bolt catch by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Bolt Catch Guide →The part most often added in each category by the 477 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 Llc Ar-15 Maritime Bolt Catch Steel Black
| Build | Parts | Total |
|---|---|---|
 | 17 | $1317.75 |
 | 30 | $6230.88 |
 | 17 | $755.67 |
 | 13 | $907.10 |
 | 21 | $3106.02 |
 | 23 | $1985.97 |
 | 16 | $1126.96 |
 | 11 | $889.97 |
 | 12 | $1512.26 |
 | 19 | $1551.12 |
 | 19 | $2049.57 |
| 23 | $1339.69 |
3 global ratings
Top reviews
Geissele Maritime bolt catch is a real quality of life upgrade over milspec. The enhanced shelf makes locking back on empty mags much easier with the trigger finger. Steel construction. Drops in any milspec lower with the standard catch spring.
steel construction is the appeal here for guys who actually shoot rifles hard. geissele finish is matte black phosphate, matches mil spec parts around it. install took 3 min once i had the roll pin started
geissele maritime bolt catch is steel for hard use. drops onto a mil spec lower with no fitting. detent engagement is positive and the textured paddle catches a thumb under load
