That's correct, actually on the 07 it says in the first line of the description that it's a single stack, but it's not always that easy;)
But yep looks like the 05 is a double stack gun. Only other thing to be aware of is holster fit, a normal double stack will fit in any normal single stack 1911 rig, but railed guns are a whole other ball of wax. So holster fit for a railed gun will be different and will require a different rig than a standard 1911 holster if it's a molded holster, kydex or leather. For some of the button rigs like the Serpa you'll still likely need a rig for a railed gun though single or double stack shouldn't effect it unless the rig goes high enough to hit that frame width change since the front half of the gun and trigger guard are basically the same.
Luke