831100f

My son was just given an Eradicator. We disassembled, cleaned and lubricated it. Two questions..............One, after assembly and testing, it would sometimes act like an automatic except paintballs didn't come out. I looked at all the possibilities and ruled them out, (CO2 full, no paint on bolt, etc.). Is it possible the trigger and sliding bolt thingy is worn, preventing it from catching after every shot? Last, is there a way to adjust pressure, (and thus FPS)?

Thanks in Advance,
Mike