I have two 1911 pistols with 5 inch barrels like I'm sure many of you do. However, unlike revolvers, if you have one, the actual rifled part of the barrel is only about 4 inches because the chamber takes up nearly an inch. Kind of misleading. So my XDS mod 2 with it's 3.3 inch barrel (I think that's what it has) really only has about a 2.3 inch barrel.