I've been looking into a gas piston ar15 for quite some time now. Every time I think I made my mind up I find a bunch of complaints online. I have some high end direct impengment like jp precision ctr-02, built 6.5 creedmoor using all jp etc. So accuracy has to be good. I realize gas piston typically isn't as accurate. Id say 1-1 1/2 moa or It will just sit in the safe. Im looking for a gun that i can put a mid range magnification scope on and use holdovers for quick transitions at various distances with. Something I can buy decent bulk ammo for and get out shooting when i dont have time to reload. The guns that have my attention are pof puritan, sig saur 516 gen 2 and the Barrett rec 7. Open to any and all suggestions. Thanks.