The Patriot Ordnance Factory roller cam pin upgrade kit (brand part no. 00393) replaces the standard fixed cam pin on a direct-impingement AR-platform rifle with a roller-style design, paired with a modified gas key. It’s built for .223 Remington and 5.56x45mm NATO AR-platform rifles running a direct-impingement operating system. As a direct upgrade for the factory cam pin and gas key assembly, it’s a simple, targeted way to address a known wear point in DI bolt carrier groups.

Key Specifications

• Uses a roller-style cam pin in place of a standard fixed pin.
• Includes a modified gas key matched to the roller cam pin.
• Built for direct-impingement (DI) AR-platform operating systems.
• Sized for .223 Remington / 5.56x45mm NATO AR-platform rifles.
• Installs as a direct upgrade for the factory cam pin and gas key assembly.

Frequently Asked Questions

What does this kit include? It includes a roller-style cam pin and a modified gas key designed to work together.

What type of AR-15 is this built for? It’s designed for direct-impingement (DI) operating systems in .223 Remington/5.56x45mm NATO AR-platform rifles.

Is this a direct replacement for the factory cam pin? Yes — it installs in place of the factory cam pin and gas key as a direct upgrade.

Buy the Patriot Ordnance Factory Roller Cam Pin Upgrade Kit, .223/5.56 AR

The cam pin is a small part that takes real wear on a direct-impingement AR, and this Patriot Ordnance Factory roller upgrade is built to hold up to it. Browse our full AR bolt carrier groups selection and order from our Lubbock, Texas gun shop for fast, direct shipping.