The receiver side rail is manufactured in the Czech Republic and is attached to the receiver by two screws (two screws provided with rail). No template or drawings are provided with the side rail as it is not needed for installation. The side rail is pushed to the top of the receiver and is centered over the visible trigger pin. The receiver must be drilled and tapped.
How to mount the side rail:
Center the side rail over the trigger pin (trigger pin in the receiver) using the cut-out in the side rail. Then push the side rail upwards (in the direction of the receiver cover). Using a drill press, center the drill bit in each hole of the side rail and drill into the receiver. The side rail will act as a guide to position your drill bit.