Why do I want one? Because stock .45 ACP in a short barrel is going to be subsonic. Being subsonic it's going to suppress easily. Being a bolt action it will be quieter than a Marlin Camp Carbine in semi auto.

Makes for an excellent animal control gun. It beats the .44 Mag rifle in the near same config because I don't have to handload to get subsonic with a very heavy projectile.
Below is an example of what I'm talking about. As a firearms MFG I can convert existing bolt guns and build the suppressor...but was looking for a factory bolt action .45 ACP as the host firearm.