Minimum barrel length. My LGS has one in stock that I was going to buy but I can't use it with my Keltec PMR30. It's the only one I've found with a barrel restriction on a multi caliber rimfire can.
Why hide what it sounds like with cheesy music? I also wanted to mention, other companies have been using clipped radial baffles for years now. And indexed baffle skirts. There's nothing "newly designed" about it except being able to use the mount to unscrew the front cap. That was kinda neat I guess.
Agreed on the music. :) As far as it using those proven baffle shapes... ain't broke, don't fix! "New" for the sake of new isn't anything they bragged on -all they said is it's easy to clean, cheap, lighter than the industry's best seller (Mask). Those are their selling points, not whether it's new/different baffle design.
