so i bought my first mech mod today (k100) and it looks different than my friends. the piece at the very top screws off of the device, and on my friends k100 it does not. here is a pic:
it fires my protank 2 just fine, but it will not fire my dripper (phoenix v10, trident clone) here is a pic of my dripper:
any idea of what i can do here??

it fires my protank 2 just fine, but it will not fire my dripper (phoenix v10, trident clone) here is a pic of my dripper:

any idea of what i can do here??