ar15 Safety wont go to Safe!

[Bastard]

please tell me this isn't going to turn into another frozen thread

[SVGUY]

I've got a LMT lower with a LMT 2 step/Geissele 3G trigger, and with the hammer down, I can't move it from 'fire' to 'safe'. With the hammer back, the safety works just fine,my hk mr556a1 works fine buy not in LMT lower,anyone know why?is a problem in lower or in trigger part?

Time to learn to put a lower together and break it down.

Best is going to Youtube and see how to put a AR15 together.

https://www.youtube.com/watch?v=z7MGhlwkLk4