If the trigger pull feels rough or gritty,
I bet the plastic parts below the sear are
pretty dry. Might need to be lubed up a bit.
I noticed this was critical the last time I did
a major cleaning.
You can verify if it's from that area by pushing
down the trigger arm and feeling the friction
from the trigger parts alone. If it then feels
real smooth and easy, the friction is from the
parts below the sear.
That section is easily removed if you drive out
the rear pin. Just remember how the arm from
the trigger goes. That whole block will lift
out and then you can take a good look at it,
and also manually push on it to see how that
part feels.
When those parts are totally unlubed, the grit
feel is horrible. But if you lube the areas
that rub, it will smooth up greatly.
I used some light oil the last time I did it,
and it worked great. But dry silicone has been
recommended lately as a better choice. Will
attract less dirt.
Lubing up that sear block area made a great
improvement on how my trigger felt.
The first time I cleaned that section I used
a good cleaner that totally strips off all lube.
I tried it totally dry at first just to see how
it would feel. Horrible.. Just wretched...
Lubed it up, and nice and smooth.