Duce,
I've not read anything good about the M.O.A. of the Kel-Tec. The best I've read about it was 2" M.O.A. at 100 yards. For what they sell for, you'd be better off to put some more money with what you have and purchase a name brand AR-15, ie. Bushmaster, D.P.M.S., Olympic Arms, Armalite, etc.
If you're looking to purchase a lower cost .223, you might take a look at the Saiga rifles. 1" M.O.A. at 100 yards with factory ammo, is a standard with these carbines.
www.forum.saiga-12.comGood luck with your choices!
Good hunting, Bowhunter57