I'm new to this forum so bear with me. I have the milsurp disease and just acquired my first 1903a3. It has a threaded muzzle and a raised front sight blade. I emailed Remington to see if they ever manufactured these this configuration. They said their record keeping ended in 1943. This barrel was manufactured in 5/43. I've seen these with herters muzzle brakes on them. Did I buy a mutt or have I got something other than a good shooter?