I have the "new" Trijicon front site, but
not the rear. you can get the front only,
from Brownells.
the new front site is pretty cool, it
allows you to rotate the sight body for
zeroing with quarter-turns yet you can keep
the dot facing to the rear. the old
Trijicon (and the Mepro, I believe),
require full-turn adjustments on the front
to keep the dot facing rearward.
quality is good, all of the Trijicons I
have appear well-made.