TRP customized by Wilson Combat. All the stock parts, 100%, have been removed and fit with Wilson Parts. No MIM whatsoever. It has the reliability package, best trigger job, and the Smith and Alexander magwell removed in favor of a really nicely fitted Wilson speed chute. All the stock parts from Springfield's custom shop are included too. Also added where slide top serations, the rear of the slide is checkered, and the slide stop has been flattened and recessed also. Flawless condition. 2 stock mags, and 2 wilson mags included with original box and paperwork. Over $2200 invested.