Enhanced cam-pin optimized for our side charge upper.
Our cam pin is manufactured with the same material and heat treat process as the mil-spec pin.
The G4 upper uses all standard mil-spec and many aftermarket bolt carrier assemblies with the use of an enhanced cam-pin optimized for our side charge upper.
IMPORTANT!! You must use the G4 Enhanced Cam Pin in the G4 Side Charging Uppers!
Use of the Standard Cam Pin will cause the Bolt Carrier Group to lock up in the G4 Upper Receiver and be VERY difficult to remove and possibly damage the Upper Receiver.
– Manufactured in the USA (Arizona) by GIBBZ Arms