Dpms Dp51655128291 Ar10 Bolt Catch Assembly
The DPMS AR10 bolt catch assembly is a critical operating component for AR10 platform rifles. This OEM DPMS part handles the essential function of holding the bolt carrier group to the rear when the magazine is empty—a feature every shooter needs for safe handling and quick mag changes at the range or in the field. Whether you're building a new AR10, replacing a worn catch on a duty gun, or keeping spares on hand, this factory assembly ensures your rifle cycles and functions as designed.
AR10 bolt catch assemblies don't get much attention until yours stops working smoothly. A worn or damaged catch can make reloading clumsy and affect how reliably your bolt locks back. DPMS parts are engineered for AR10 platforms and direct sourcing from the manufacturer means you're getting the same component that ships with DPMS rifles—not an aftermarket substitute trying to approximate the fit.
Installation is straightforward for anyone comfortable doing basic AR work: the bolt catch assembly integrates into the lower receiver using standard hardware and installs alongside your trigger group and safety. If you're a builder or a shooter who likes to keep spare parts around, having an OEM bolt catch on the shelf takes one thing off your worry list.
Key Features
- Original DPMS AR10 platform component
- Engineered for reliable bolt-lock-back function
- Fits standard AR10 lower receiver design
- Factory-direct sourcing ensures OEM fit and finish
Specifications
| Brand | DPMS |
| Part Type | Bolt Catch Assembly |
| Platform | AR10 |
| Category | Firearm Parts |
Frequently Asked Questions
What AR10 rifles does this bolt catch assembly fit?
This is an OEM DPMS part designed for AR10 platform rifles using standard AR10 lower receivers. Confirm your rifle's lower receiver is AR10-compatible before ordering.
Can I install this myself?
Yes, AR10 bolt catch assembly installation is a basic lower receiver job suitable for anyone comfortable with basic AR gunsmithing. Standard tools and armorer's block recommended.
Is this a complete assembly or just the catch pin?
This is the complete bolt catch assembly from DPMS, containing all necessary components to install as a unit in your lower receiver.

