It's like a Kimber warrior but take a look at the front and rear sights. They are like the ones on the 1911A1 Gov Model. The mainspring housing on the toy is sloped, the kimber is straight. I think someone already mentioned that the hammer is straight like the Colt Gov. The hammer is of course ported. Also, look at the magazine base. It is the flat type like on the original 1911A1, and doesn't have the bumper like the Kimber does or that Combat Wilson mags have. The bumper is meant to be used on a pistol grip with a magazine well on it. The barrel would be of course threaded in order to fit that flash hider but the flash hider is one for the M4A1 Colt Carbine. Seems like a fantasy fabrication.
To construct something like this, I would use the Colt Government Model. Find one with the rail on the frame, then just add the grips, hammer, threaded barrel, and flash hider. Go the airsoft route and search for Tokyo Marui. They have a Gas Blowback version and spring as well. At least they used to. Hope this helps.
P.S. IMO, Kimbers are definitely not the best custom 1911s out there. From experience, the stovepipe a lot, have improper feeding at times and are over-priced. They're nice, don't get me wrong but not the best.