Great Stock!!

This is a great buy for the T9.1, or any magfed/milsim marker. Good quality and design. Adds a little weight but in comparison, not having a remote line in your way, or tank on your back, makes it work every penny. Limited to around 100 shots, maybe more once the tank is well broke in, not a great buy for you 'heavy fire' kind of guys.

Mine came with a Gurilla tank with M3 reg.

Great for mag-fed players!

A must have for any 9.1

This option was the main reason I wanted to upgrade from the T9 to 9.1. Air-through is sooo much better. No need for changing 12g or running out of air in the middle of shooting a MAG. It does add weight to your marker but I think it is totally worth it. Also then you don't have that remote line in your way and bulky heavy tank on your back either. Great product.