Just bought a PS90 USG

[M1P90]

I would suggest getting the Black Ring Sight rather than the White. The Black cross hairs are easier to see then the White ghost rings. The Black sight is made out of metal instead of plastic like the white. The REM T3 illuminates both sights equally but again the Black sight by itself is supeior to the White.
Hope this helps.
Chris

It does. are you still doing free installs on the black ring sights?

Affirmative. I'll be offering the free install for the rest of the year.

[s4mur41h4x0r]

I would suggest getting the Black Ring Sight rather than the White. The Black cross hairs are easier to see then the White ghost rings. The Black sight is made out of metal instead of plastic like the white. The REM T3 illuminates both sights equally but again the Black sight by itself is supeior to the White.
Hope this helps.
Chris

It does. are you still doing free installs on the black ring sights?

Affirmative. I'll be offering the free install for the rest of the year.

Cool, I will reach out to you after I go shooting this weekend to test the sight outdoors.