The Fk Irons screw on vice connector allows for use with standard back stem cartridge grips, such as the RPG Click, Injecta, and other screw on vise style machines.  This 2 piece connector is easy to install and remove.  

• Works with Fk Irons RPG Click
• Allows use of standard back stem tattoo cartridge grips 
• Enables screw on vise style tattoo machines such as the Injecta to work with RPG click
• Easy installation and removal