A few years ago, I bought a well used low serial numbered (1915) Springfield 1903 barreled action from the CMPicon. The barrel was burned-out. I found a man in NC who installs full length quality 22 rim fire barrel liners on 1903 barrels, they have an extension to fit the Springfield M2 (with the headspace adjustment). I had a M2 bolt and was able to put this together, also used a Lyman 438 pre WW2 scope. Gun Parts sells a 03A3 trigger housing modified to use a magazine too.Attachment 48562Attachment 48563Attachment 48564Attachment 48565