You will need a slide/ barrel bushing that will fit the barrel you want to install.
It will vary with the maker of the bull barrel.
the 1911 45 ejector would not line up for a 38 cal. cartridge.
a 1911 barrel, by itself is not illegal, except maybe in a school.....................
Barrel diameter
Do a search for Jarvis. They make a bull barrel for the $597, it runs $198 in either blued or stainless.
The barrel length of a Colt 1911 is typically 5 inches for the standard Government model. However, there are various models and configurations of the Colt 1911, some of which feature shorter barrels, such as the Commander model with a 4.25-inch barrel or the Officer's model with a 3.5-inch barrel.
A heavier (bull) barrel is stiffer than a light barrel. It does not vibrate during firing as a light barrel will. Combined with a steadier aim due to the increased weight, the combination produces greater accuracy.
You will probably have to contact a barrel maker.
A PMI razzor barrel (spyder thread) will fit your barrel needs. You know it will fit if it is "spyder" threaded.
Barrels are to small to fit any one horse into it. So no horses can fit into a barrel.
bbl
Value of a smith and western model 581 357 magnum crome with 6 inch bull barrel