haha well you are in the middle of the 2!
so 363mm it is

along is the clear hop-up >
this one or
the Black one The clear says for guns under 400fps. no idea what mine is.. TM with 17%pdi and prob a 363mm tight bore soon
and might have to order some .28's soon you guys are expensive! lol
I was reading about sorbo pads. are they worth adding to "quiet" the gun.. would you loose velocity bt adding it on to the piston head?