The Brownells BRN-4 Firing Pin (MPN AZT-H&K-416-FS-001) is a precision component designed specifically for HK416 performance-based rifles. This firing pin is included as part of the BRN-4 Bolt Carrier Group, making it compatible with HK416-pattern upper receivers and the Brownells BRN-4 system. As a replacement or spare part, it ensures reliable striker function in your piston-driven platform.
Built to Brownells’ quality standards, the BRN-4 Firing Pin integrates seamlessly with the proprietary BRN-4 bolt carrier group design. Whether you’re maintaining an existing build, upgrading a component, or stocking spare parts for field maintenance, this individual firing pin provides the dependability expected from a piston operating system that runs cooler, cleaner, and smoother. Keep one on hand as part of your backup parts kit for uninterrupted performance.
