Barrel stamp identification help

[James Palmer]

I recently picked up a set of 12 ga 32 inch ejector barrels in very nice condition. There are a number of markings on the barrel flats which I am guessing are repair codes. However it is hard to get an idea of what they are...any help would be appreciated?

thanks,

James

[Dean Romig]

Most look like Remington codes.

[Researcher]

AK3 = March 1941, ORR3 = July 1946, and LXX3 = February 1951. The KG and the unusual looking symbol are perplexing. K = May and G = 1938, but the K being stamped so much deeper, I'm not sure the K and the G actually go together. The Sunburst symbol is unknown but is found on quite a few Parker barrel flats.