You can get 1911 springs (or most any springs) from Wolff Springs, Midway, Wilson Combat, Brownells.
I am trying hard to get to the mystery of this pistol. After a broken firing pin three weeks after buying it, I think I'm getting closer to solving all it's mysteries. I don't know if I can get the trigger to consistently be the same though - it seems to be about 5 or 6 squeezes that are good and 4 or 5 that are not so great (a little gritty). I've done all the "fixes" so I'll be trying some other things. It may end up just being a fun range gun, which is kind of disappointing from a Steyr. If I could just get the trigger to be consistent. I bent the ejector a little to get ejection to 1 o'clock instead of straight up so that was a win.Thank you for your reply, I sold the gun months ago. Tired of spending money to fix a problem I don’t have with any other guns. Loved it, but if it’s not dependable it has to go. So it went!