Functions test C8/M4-C7/M16
First Remove mag
Cycle bolt 2X
Place selector on safe, squeeze trigger a few time to make sure it holds.
Then place selector on semi, squeeze trigger and hold once the action fires.
Cycle action with trigger held, action should not fire, release trigger, you should
hear the action small clunk noise as it is held by the semi auto catch.
Move selector to auto, fire the action, hammer should fall, hold the trigger
and cycle the action again, the hammer should fall as action goes forward.
It doesn't sound like your trigger assembly has any issues.
Don't move the selector to safe while squeezing the trigger, you could damage the selector.
Hope this helps
