My tippman a5 paintball gun wont fire i have air n i put the battery in the right way and it still wont do anything

it could be a combination of a number of things.. most likely it has to do with the type of paint you're shooting; in regards to shell.. tippman guns are harder on paint therefore require a harder shell paint, also not all paintballs are exactly .68 caliber, meaning some a bigger and some are smaller.. could be that they're slightly to big for the bore of you barrell

Sounds like the gun needs lube. Oil it and try again. 2-3 drops of oil in the hole
where the tank screws on then put the tank back on. Fire it and see how it does.
I havent heard of a low pressure kit for the A-5 but I think it is a waste. There is a rule
with pressure and paintball guns. Low pressure=high volume of air used.
Standard pressure=regular volume. I have 2 a-5's with e-grips and flatlines.
I polished the internals by sanding the bore of the tube (use fine sandpapaer) and
this makes the velocity very consistent.
One thing that comes to mind is that the hammer may not be getting caught on the
trigger latch. Makes sure your gun is assembled correctly. here is your manual.
http://www.tippmann.com/pdfs/products/A5/a5manual.pdf

There is an O-ring up in where the Tombstone slides in. That O-ring has to be lubed (oiled)
and should be toward the rear of the gun when installing the Tombstone. Also, drop-off
in firing can be caused by lack of lube on the internal O-rings. 2 drops of oil in the inlet hole
where your bottle screws on and then dry firing to cycle the oil thru might help. You may need
to completely tear down the gun and clean and lube the internal O-rings. If you can switch to
air AKA...HPA (High Pressure Air) it will be better for internal parts and better consistency overall.
Here is your manual for reference.
http://www.tippmann.com/pdfs/products/A5/a5manual.pdf

You will have to buy a different barrel for the A5, I would suggest ansgear.com, rockstartactical.com, or ebay. Make sure that you get the right threads along with an apex capeable front. I would suggest the sly carbon fibur barrels, or get a autococker barrel and a lapco adapter for your A5. Hope this helps if you have any questions just let me know.

In order to use you gun you will need 3 basic things. First, you need to have your hopper with paintballs in it, second you will need a CO2 bottle to propel the paintballs, and finally **** the gun on the side have the gun in the ready position. There are some security measures to be followed like having a paintball mask for facial protection and to handle it as loaded weapon at all times since it can harm a person if not handled carefully.

On the A5 the hopper or Cyclone feed is powered thru a small tube on the feeder side
of the gun. Make sure that tube is connected and if so, pull it off and see if air is flowing
thru it when you pull the trigger. If not, the internal passage may be blocked. Tear down
the gun and clean out the obstruction. If there is a pulse of air coming out the tube when firing
then it may be the Cyclone feed mechanism. Just unscrew the 3 phillips head bolts
under the Cyclone and observe the air driven gear drive. Air up the marker and see
what is moving or not moving. Complete replacement upgrade Cyclone gear drives
are available that say they increase performance if you cant get it moving.
Here is your manual
http://www.tippmann.com/pdfs/products/A5/a5manual.pdf

Get another ball detente from ebay, this one is the cheapest one I could find.

http://cgi.ebay.com/NEW-TIPPMANN-C-98-BALL-DETENT-A5-BALL-DETENT-/370469346400?pt=LH_DefaultDomain_0&hash=item5641b19c60

Your "ball detent" has worn out. This is a little rubber nipple inside the breech of your gun (where the balls go into the gun from your hopper) that has torn. This is a normal wear and tear item and will cost you only a few dollars to repair. You have to buy this part from your local paintball pro shop they will have it.

To remove the response trigger you need to first remove the grip frame. Remove the piston and replace the fitting that supplies air to the piston with a plug. you can find this at any local paintball store or online at www.badlandspaintball.com. If you can't find this plug than you can leave it open as it is not under pressure all the time only when the marker is fired, you will waste air this way. Good luck