Looking for more info. BYF 41 SN-3877

[Yukon Jack]

Thanks again for the replies. Grips are original according to the gunsmith that looked at it and he did refer to it as a black widow. Can't tell if the punctuation between the P and the 08 is square or round. I know it's a very long shot but if the mag(s) were out there somewhere I certainly would like to acquire them. Any information on the mags I do have would be appreciated. Also are there any references out there that might give detailed information about the gun I have? Branch it was issued to, who it was issued to, etc.?