If you are looking for enhanced accuracy, I strongly urge that you get an oversize barrel, and pay a local gunsmith to fit it. There really is no substitute for a correctly fitted barrel, a bushing tightly sized to both the barrel and slide, and a properly fitted link and slide stop. This alone will give you 70 - 85% of the enhanced potential accuracy of a high-end production 1911 - the rest due to slide/frame fit,trigger weight/pull quality, sights, etc.