Yup but it'll cost you more than the gun to fix if you do it right.

You need either a V-trigger, M-trigger or Z-trigger :)

Oh, and a new piston to accompany the change in degree on the back of your piston end.

(read: Don't buy clone sniper rifles... Ever.)

Hm, Id take it apart and make sure it's clean. Wipe it out, then apply silicon to it. See if that helps, if it doesn't, theres probably something wrong with the bolt