x7 problem

If the tank is new as well, it may be empty.  They don't come filled.  Pardon me, but I'm assuming you're brand new to paintball.  If not, my apologies; but you need to explain exactly what happened when you pulled the trigger.

Edited by Mack - 28 September 2007 at 5:32pm

Is the marker stock or modified.  If it is modded, please list every mod.  Additionally, what size CO2 tank are you using and does it have a standard pin valve or an on/off valve?

The Flatline (F/L) may be part of your problem, but it isn't the entire problem.  Keep this info in mind for later if you have velocity issues:

• The F/L uses a rough internal surface combined with an arced barrel to induce spin on the ball. (The arc forces the ball to ride the top of the barrel while the rough surface grabs and spins the ball.)
• Both of these factors (rough surface and arced barrel) create extra friction on the ball.  While this friction is what makes the F/L work, it also slows the ball down in the barrel.
• Some F/L owners find that they have issues with low velocity (230-240 fps) normally once the barrel is installed.
• This can generally be fixed with an after-market spring kit.
• Installing a heavier drive spring causes the hammer to hit the valve harder, thus opening it for longer.  More propellant is released, which compensates for the extra friction from the barrel.
• As a side note, once you start working with your barrel, you should know that most A5 F/Ls seem to have the best accuracy at velocities around 265 fps.

Now, back to your problem.

Has this marker been used with this tank before?

If so, did it work before?

Has this tank been used with any marker before?

If so did the different marker work with this tank?

How far did you disassemble the marker to install the F/L barrel?

How much experience do you have with paintball markers?  (I.E. borrowing other peoples, renting, etc.  I need to know this because it will affect what I suggest you try.)

Your welcome.

Tippmanns are the most dependable markers made, so this is a little out of my experience range.  One just out of the box not working is practically unheard of. 

With this in mind, I'm going to start with the assumption that the problem is with the tank and ask a few more questions.

Where did you get it filled?

How long ago did you get it filled?

Can you depress the valve pin with your thumbnail and get it to release CO2?

If it seems to be the barrel, then the first question should be "Will your paint roll freely through the barrel?"