I have both. The Rock Island Armory is lacking in quality. Mine was new in the box with a firing pin spring that was not even the correct part. The grip frame is out of specs, my Kimber .22 conversions will not fit on it. Like the others have said,, you can get a Springfield GI for a few $ more and the quality is worth more than the few extra $ it will cost you. In my area the Rock Island is only around $60.00 cheaper than the Spring. GI. and my Kimber .22 conversions fit the Springfields. This is sort of off topic, but out of all my 1911's, My favorite is the Oly long slide Match Master. In this area it was around $200.00 more than the Spring. GI ($600.00). Right out of the box it is the most impressive .45 cal 1911 I have ever shot. Good luck with whatever follows you home! ALLONS11