Just got my Reaction and am ready to hit the range. I haven't had a 1911 in almost 45 years and this one is head and shoulders above that old Colt (from what I can remember). I do however have a few other pistols, a 1991 Browning Hi Power, a CZ 75B a little Sig P356 and a Ruger MK IV 22/45. All but the Ruger are chambered in 9mm as I just go to the range no need to support a .45 or 10MM to poke holes in a piece of paper. The only "Upgrade" I got added to the Reaction was a adjustable rear sight, got to really like those after getting the Ruger. Looking forward to learning from you guys and gals.