Help Please, Newbie Having Trouble With Gun!

[andycapandy]

Hi All,
i have just got a paintball gun from a friend of a friend So no info on the gun on how it worked before etc.. been stood a while...
i am unsure of the make, there is one badge which looks like it say's M3 (no its not a bmw badge stuck on lol)
it has a electronic trigger with 1 led light and 1 button.
The gun had a air cylinder fitted which i was unable to fill, so i have bowered a friends co2 clinder and used that. gun was working fine but after around 400 shots (maybe a bit less) only fires one at a time. i have to reload (pull bak handel) the gun every time to fire a shot.
The co2 clyinder i used had just been filled so was not half used etc..
i have to wait untill next week to get another refill so i was just wondering if it was my gun or just lack of co2 pressure.
there is also a gauge on the gun. when i first connected the co2 it was reading about 700 psi. when the gun started to play up it was down to 400/450 psi. Is this still enough to fire or is it just the pressure thats a problem.
i belive that using co2 is ok even though the gun used to be used on air, is this correct?
Thanks in advance, Andy

 

[kallumrocks]

Do you have any pics of the gun?

Not all guns can be run on co2 because it ruins insides of the gun.

Kallum

 

[lofty1987]

the marker sound like a spider mr3, which i am sure that it is compatible with co2 but using air would be more consistent meaning that u would have to pull back the pin. u say the air wont fill, what bottle is it?

 

[andycapandy]

http://i145.photobucket.com/albums/r211/andycapandy/BILD0259.jpg

http://i145.photobucket.com/albums/r211/andycapandy/BILD0261.jpg

 

[andycapandy]

Hi,
please find pics above.
how much psi is needed to fire a ball before the gun will play up? or should the gun keep fireing with little psi and just be low on power? (hope that makes sense?)
Thanks Andy

 

[lofty1987]

well it is a spider, which will work on co2! how much psi wont affect the firing it should just fire with any bottle attached, however co2 may have affected the o-rings on the bolt which would be the reason its not firing, or could just be the fact that there wasn't enough co2 in the bottle, often on blow back guns when the bottle is almost empty it will need constant pull back of the pin.

 

[andycapandy]

Hi,
thanks for the info.
I have just come back from a friends. We stripped the gun and there was 1 o ring which was slack so i have just changed this. This was on the piston like thing (sorry but don't know correct term) The gun now fires perfect even when using my bottle which i had used today (running at 300 psi now)
So thanks for the help.
Any info on the gun would be good, Are these any good, cheap/expensive to buy etc..model number?
Cheers Andy

 

[MJ]

old and a mechanical gun i think!

 

[lofty1987]

the only think i can tell u m8 is that its a spider, but if your serously thinking about starting paintball then i would invest in a new marker berfor u think about buying anithing new for it. not anithing really flash just something reliable that fires in a stright line. try thinking about buying a second had ion or something there are ldz out there, i no a coupple of people if your intrested. gd luck though buddy.