I am thinking on getting one of the 10.5" Colt 6991LE 9mm AR's with removable carry handle. I realize they are straight blowback design, but I have always just loved the old school look of them for some reason. How many of you guys own this model of one of the 16" Colt 9mm carbines. Any issues? Are the Colt 32rd mags decent? Just looking for input.