Could someone please tell me is the overall dim. of a mg34 reciever 12.992 inches and what is the dim. from the front of the reciever to the center of the recouperater retaining pin hole on the side of the reciever, any info would be a help just got pirates fixture today getting ready to weld. He has a really good price on the fixtures bye the time i bought the material and did all the work to make the fixture it seemed reasonable to buy one of his. nice piece!