so I just bought a used Dominion Arms 556 off the EE last week, got the paperwork, and went to the range yesterday to try it out. Load it up with some Norinco surplus ammo and squeeze a round off, and no trigger reset? I have to manually push the trigger forward from the rear of the trigger to have it reset. I am a complete newbie to theAR platform, and maybe I was doing something wrong, but I had an experienced AR shooter with me, and he couldn't make it function either? Out of 50 rounds, the trigger only reset about 20% of the time. The seller told me he had installed a trigger from his Windham Weapons AR, and did ship me the original trigger with it. Just looking for ideas on what to try, could he have messed up installing the WW trigger? Should I try cleaning the trigger group and see if it helps out, or maybe have the original trigger installed again? Any suggestions would be greatly appreciated, not happy to have problems right off the bat with a platform I don't know 


















































