• Choose your desired type above
• NP3 coated 
• Fits any gas piston 5.56 style carrier
• Reduces friction on your receiver
• Smooths action for any piston kit
• The perfect addition to the Superlative Arms piston kits

POF designed their roller cam pin specifically for piston operated rifles, keeping in mind that common cam pins drag along the top of your receiver and cause more friction and upper gouging to occur.

On direct gas impingment rifles you will need to un-stake your gas key to install this product, and then re-stake your gas key 

For more info, visit POF