I noted the commonality of the 200 to the 110 series rifles but the fact is replacement parts will likely cost more than a new rifle in the desired caliber would, especially if a trade is involved. Also the AccuTrigger is a tremendous asset to the rifle. I would gladly add $100 to the 200's cost to get the trigger.. Trade the m200 for a 110 in the new caliber. It'l be cheaper and the accutrigger clinches the deal.