THE DEFINITIVE GUIDE TO COLT SMG UPPER

So, in the event you’re not far too bothered about seeking a significant tactical weapon with a strong caliber but choose to have a great time with an identical variety of weapon – a 9mm AR-15 upper could possibly be the best way forward. I have not selected a flat top rated or A1 (with out FA and deflector).  I'm wondering a 16" flattop, and