CoElkHunter
AH ambassador
The left side of the receiver says made in Belgium so it isn't an Interarms Mark X or Whitworth. I don't know about the Mark Xs, but the Whitworth's were "finished" in Manchester, England and say so on the receiver. I have three Whitworths and they also (along with Mark Xs) either have a magazine release inside the front of the trigger guard (earlier models) or a push button on the right side front of the trigger guard. Interesting rifle though at a very fair price.