Thanks for your reply. Nice looking Mountie. Actually have 2 39d's---one is of 1973 manufacture(serial# 73 120539) It is 100% correct. And the one in question is from the 1971 batch (ser.#71 71836) the two are virtually identical except for the Tang. Lighter profile barrel/carbine type forestock w/barrel band. Neither one appears to have been molested/smithed at all-- virtually new condition. I dont believe the lower reciever or the stock has been altered or changed in any way. Just disassembled the reciever and the serial number on the tang side matches the number on the other side. I think it came from the factory as a straight tang 39D. Thinking it must have been a special order or an anomaly of some sort. Dont think many of them exist in this form. If anyone can give me some hints on how to post pictures I would post a few.