Gun Dog CZ-USA 712 G3 Shotgun: Shotgun Review Checking out the upgraded 3rd generation the CZ-USA 712 shotgun. GUN DOG's Editor-in-Chief Kali Parmley tests out the new CZ-USA 712 G3 shotgun. October 26, 2022 By Kali Parmley GUN DOG's Editor-in-Chief Kali Parmley tests out the new CZ-USA 712 G3 shotgun.×