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Thomas, I believe this to be proprietary to POF. You should still verify this with Patriot Ordnance at 623-561-9572

Thomas, Yes this POF roller cam pin can replace any 4 side headed cam pin in your AR style 308 bolt. POF has a entire kit with modified gas key with radius cut and 2 screws to be installed to make roller pin function. The roller cam pin is a beautiful innovation, available as an upgrade for your piston operated non POF-USA rifle or as a kit for your direct impingement system. See all about it here from POF:-----------https://www.youtube.com/watch?v=RLEhxoSuoKI Also have the kits available for 5.56 platform. You want the entire kit with radius gas key.

Thomas, You need the kit with special radius gas key. It comes in a kit (Part number 00393) $45 on POF-USA sight. The pin itself is (Part number 00306) Here is link to 5.56 kit to see what you need. https://www.budsgunshop.com/catalog/product_info.php/products_id/5172/patriot+ordnance+factory+00393+roller+cam+pin+upgrade+kit+ar-15+223 Can use the kit on any AR. Direct impingement or piston guns.

Thomas, PS to the two below responses. Do not need kit with gas key for piston guns. The roller cam pin (part 00306) will work just fine. No modified gas key needed.