I like Rock Island 1911's in general. I have not owned or fired one of the 6" versions, but I am tempted. I own 9 RI 1911's. 4 1911A1s and 5 1911A2 (Hicap version). I like all of them. No real issues, had to do more work to a S&W 1911!!!!
As for the 6" barrel; I built a Frankenpistol out of a ParaOrdnance frame kit (aluminum) when that was the only product that they has to offer. I mated it to a 7" AMT Hardballer Stainless slide and barrel. I call it Pinocchio.
God awful to conceal. 14 Rounds of .45, plus another 42 in reserve....I'm set.
I can do really well. Based on my experience using a factory Para P-14 5" barrel and slide:
At 50 yards: 7" holds 2" groups, 5" is almost 3".
At 100 yards, 7" holds 3.5" groups, 5" is almost 5".
Nice note; The 7" solidly knocks down steel silhouettes at 100 yards. The 5" knocks down just over 80%.
Chrono info: 7" 1211 fps, 230Gr RN BALL. 5" 970 fps. I have no useful way of measuring energy.
If I could find more of the AMT Slides and barrels, I would buy them and convert more of my Hicap pistols.
Go for the 6". It may only add 100fps, but I think that it will add better accuracy. I did pick up one of the 16" carbine kits. Chrono showed 1124 fps. Eventually decided to play, and ended up at 9.75". Chrono showed 1338 fps.
Take that any way you want to.
Rapid fire is greatly enhanced withmore muzzle wieght.
Hope that helps.
Buy one!!!!!
Bellson
