I picked up my new 4.25" 45ACP yesterday. It is an American Tactical Inc. Though named "American" it is made in the Philippines. The finish is dull blue slide with a matte blue frame. Basic blade rear sight, square post front tenon sight. It has a very well fitted beavertail grip safety. The thumb safety is basic GI. The trigger is long and black. The mainspring housing is flat and serrated. Grip scales are some kind of plastic and checkered.
Fit is very good. There is no slop in the slide/frame fit. The barrel does not move when pressed down through the ejection port. The biggest thing is the trigger pull. My trigger finger is getting a workout with an average pull of 6.5 lbs. That equals the pulls of my Para P14-45 plus my open division 9x23 plus another 2 lbs. Yikes! Oh, the hammer is a true Commander style. It has a hole but no slot. The slotted hammer that most call a Commander hammer was first used, IIRC, by gunsmith Steve Nastoff around 1980.
Having purchased a Timney trigger pull gauge I now know the pulls on all of my firearms and got a few surprises. My Para 9x23 that I thought has a 1.5lb pull has in fact a 2 lb pull. My Para P14-45 has a 2.5 lb pull. I was very surprised at the pull on my AR15. I don't know what parts are in it, having purchased it used. The pull runs from 2.75-3.0 lbs.