I don't believe Armscor produces a single forged frame 1911 or has a foundry forging 1911 frames. I know Armscor has a hand in the production of Rock Island Armory, High Standard, Charles Daiy and Armscor 1911s , and they provide frames for STI's Spartan 1911. There may be a few others I missed. At any rate all of those guns have cast frames. I believe all the SAM manufactured 1911s have cast frames also.
I once owned a RIA 1911 4 inch mil-spec looking (Parkerized, GI trigger, Hammer, Grip Safety, Although it did have a Bull Barrel/No Barrel Bushing). I think I paid $390 something out the door for it at a brick and mortar gun shop. It was a fine shooter, cast frame and all, although I got rid of it before I had put more than 500 rounds through it.
creepy. Get out of my head.