Brownells AR-15 Bolt Catch Mil-Spec
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Brownells
Overview
The Brownells AR-15 Bolt Catch is a Mil-Spec component designed to provide reliable functionality in your firearm. It ensures the bolt remains locked to the rear after the last round is fired, allowing for quick and efficient magazine changes. This bolt catch is often found in mid-length gas system builds chambered in 5.56 NATO, where reliability and ease of use are essential for the shooter.
Specifications
October 2026 on GunPartPicker
Brownells AR-15 Bolt Catch Mil-Spec ranked #28 of the 75 bolt catches builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #23 of the 118 bolt catches builders have added. Builds with this bolt catch are mostly chambered in 5.56 NATO (73%), split between mid-length (52%) and rifle-length (24%) gas systems, and mostly AR-15 (91%).
Today only Optics Planet has it in stock. Buying today, the lowest price is $5.99 at Optics Planet.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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We ranked every bolt catch by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Bolt Catch 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 builds →Builds in the community that include the Brownells Ar-15 Bolt Catch Mil-Spec
| Build | Parts | Total |
|---|---|---|
 | 30 | $7830.91 |
| 19 | $2309.53 |
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