I have as Star 15 made by
Double Star here in Ky. They don't seem too popular with a lot of AR gurus but I can honestly say I've loved
this rifle from day one. It's a no frills M4gery but it shoots straight and can reach out there pretty well.I have all of 600.00 in it (not counting the glass but it's a cheap one anyway). They make both
basic rifles and some
custom jobs, some of which I've got to shoot and all I can say is WOW! These guys have been in business a good while but didn't start selling whole rifles till around 2000. Their parts do go into some of the bigger name rifles if I'm to understand it right.
Buds has a Star 15 for 659.00.
The others have given some excellent advice. I just thought I'd toss this in to add to possibilities.