Pauly,
The five ports are offered by MD arms Called the V-plug. It offeres 5 ports instead of two to be able to shoot high and low brass with the so called "twister puck" supposidely. But I am just having issues with it cycleing as of right now. Shooting it this week to see the outcome. Starting from scratch and see what works. Will post outcome just incase anyone may have this issue in future.