Bigrob, you should post pistol questions in the pistol section. A couple guys have been discussing the Prod over the last couple days so I’m sure they would have some input. It doesn’t take much to make a Prod quiet.
I put a Sumo on mine. Pretty dog gone quiet. I hear the air tube ping and thats about it. I have to take the can off to fill the gun but its no big deal. About 10 seconds to remove and replace it after filling.
Anything you don't need to unscrew whenever you need to air up the gun that's light weight like a TKO or ask Airgun Universe if he can make you a $20 - $25 one they're super light.