hey there guys,i installed these parts before i first shot it

UTG Quad Rail
Troy low pro gas block
Mbus Sights
Nikon Pseries Scope
Magpul flashligh mount/surefire Gx2
and Bi-pod
could i have put the gas block and gas tube back on incorrectly?
shoots 1 sometimes 2 or 3 rounds and it will either not cycle or it would jam i would have to pull the charging handle extremely hard to release the bolt or whatever is getting stuck