The Heckler & Koch Firing Pin Retaining Pin (H&K part no. 203564) is a genuine factory part built for the 416 platform. It is the small pin that keeps the firing pin captive inside the bolt carrier, and a worn or missing pin can let the firing pin travel further than it should during cycling.

Key Specifications

• built for the HK416 platform matching factory fit and function.
• retains the firing pin in the bolt controlling its travel during the firing cycle.
• factory H&K replacement part rather than an aftermarket substitute.

Frequently Asked Questions

What rifle platform is this for? It is a factory-correct firing pin retaining pin for the HK416 platform.

What does this pin do? It keeps the firing pin captive inside the bolt carrier and controls its travel during cycling.

Buy the HK416 Firing Pin Retaining Pin

Keep the firing pin properly captive with the current factory H&K part. Browse more of our rifle parts selection and order from our Lubbock, Texas gun shop for fast shipping.