I just picked up a Sig Sauer Mosquito just to plink with and to teach my son shoot. First time out with the gun and had nothing but problems with it not feeding properly, spent rounds getting jammed. Very frustrating to be dealing with right out of the gate. Has anyone else had problems with this gun before or is it a fluke? Tonight I took the whole thing apart, recleaned and oiled hopefully that would fix it. Any suggestions would be great.