cheers ash! as soon as i have more air in my tank i will try and sort it out again. i did try and fire the marker when the air was leaking from the bolt but all that happenend was the solonoid clicky noise and air leaking?? thats why i got a little bit worried! once this has been sorted tho i am definatley gonna get one for myself as a back up gun also the rest of the team has fallen in love with the marker so they will all be using them! just gotta get this bugger sorted out!