iN THE MARKET FOR AN .308 TO SHOOT AT THE RANGE FOR FUN. I LOVE MY SIG M400 AR-15 BUT RAN ACCROSS A M1A1 USED FOR A REALLY GOOD DEAL. ALSO LIKED A ADAMS ARMS AASF-308 BUT HAVE SEEN WHERE THEY HAVE HAD THEIR FARE SHARE OF ISSUES. tHE TWO GUNS IN THE SAME RANGE OF $1200. ADVICE???