Yes, it's a Colt. Built in 1958, and slowly optimized over the past ten years. It looks box-stock, but it ain't.
Bar-Sto match barrel, 45ACP.
Briley spherical bushing.
Millett adjustable rear sight.
Wilson or EGW sear (not sure any more.)
Dlask Custom extra-short 52mm NM trigger, made to order. Took me four hours to fit. Worth the effort.
Ed Brown competition mainspring.
S&A stainless magazine funnel. Yes, I know, it looks funny. It's what they had in stock.
Wolff reduced-power mag catch spring.
Full-length guide rod, 16lb recoil spring.
Ahrends S&A- cut cocobolo stocks.
Skateboard tape on the frontstrap.
Trigger's about four pounds. The pistol groups very well, and I use it primarily for bullseye. Apart from a couple of TMJs porpoising, the only malfs I can remember seem to have been due to fat handloads. Now, I chamber-check every round (barrel out, of course.) The funnel and lightened mag catch spring are all it really needed for casual holster sports, though I've thought about beavertailing it. But I've never had a hammer bite problem with 1911s, and I'm a bit hesitant to start cutting on the frame.
A fun pistol to shoot, and one I have enormous confidence in. Taking a page from Mr. Anderson, I've decided to pick this one and practice. Might get my El Presidentes down under twelve seconds someday.