As I have absolutely no desire for anything in 40 S&W, I am interested in a 9mm or .45 ACP revolver. Here is an email reply that I got from Dee Ecker about this very topic:
We have secured our Patent Pending standing on the new and unique ejection system.
The new “Pit Bull” is entirely self contained and requires no moon clips or additional support equipment.
The 40 caliber Pit Bull is 416 stainless steel built on the Charter Arms large frame revolver, 5-shot with a 2.3” barrel. The Pit Bull features a stainless steel matte finish and regular spurred hammer.
It is Charter’s plan to follow the Pit Bull up early next year with a 9mm version built on the Charter Arms 416 stainless small frame revolver with a 2” barrel, 5-shot. A .45 caliber is also planned for late 2012 and will feature a newly designed larger frame also all stainless steel and 5-shot.