The ability to change barrels is a huge plus to us here in NJ
Because of how hard it is to get a handgun (some people have waited half a year and more) then you can have one gun and use it for more then one scenario without having to go through all the BS of buying a second or 3rd gun.
"...with liberty and justice for all." (Must be 21. Void where prohibited. Some restrictions may apply. Not available in all states.)