If you want to put a scope on a standard M1A, it will cost you around $500 for a good scope mount. The cheaper mounts are junk, and won't stay tight or hold a zero.I'd love to have one of those new Springfields, but hell they cost as much as a used car lmao. I think the last time I looked, the pretty basic ones were selling for like $1500+ with the good ones going as high as like $3k, and on places like gunbroker I've seen people try to sell them for something like $4500+.
That's why I would only get one with the M21 receiver if you want to shoot with a scope.
The AR10 style platform is much easier to setup and maintain, plus most don't cost as much as the M1A platform.