A lot of choices but if your budget is as high as $1600.. that is definitely considered premium territory around here.
You can pick up perfectly functioning and accurate rifles for under a grand.
But if you want to get something nice in that price range you can get Daniel Defense DDM4 for 1300-1400 streetprice (MSRP is higher)
And that's considered very much a premium gun that I would rank higher than the Colt (which is also considered good obviously)
At 1700-1800 the LMT CQB MRP are in your range... very very nice.
so many nice rifles in that price range ..
I also enjoy the real high end guns , even tho sometimes I call them boutique guns because pretty much anything from Daniel Defense on up, they spec out higher than Army/USMC issue rifles..
And since we dont fire full auto honestly its a bit overkill.
I am not trying to discourage you form buying a premium rifle..and having somethnig really nice is a lot of fun.
Just want to make sure you dont spend that money because u think you have to, to get something good.