Yep, what Alex said. The same marking on a British L1A1 lower receiver and magazine:I've got one with similar markings and the same logo as in photo 2. I think it may be British. Look at the marking to the left of the logo. Looks like an "E" inside a "D" like on Enfield BREN's. The British used a lot of 1919A4's on their AFV's postwar.