The ML- 34301 is for early versions of the M3S90 (Before 2001).The easiest way to tell if this is the correct sight is to look at the rear "ghost ring" sight. If it "slides" from side to side in the dovetail, then it is the correct set.
Unequaled Low Light Performance
Brightest Night Sights Available Today
Used by Military & Law Enforcement
All Tru-Dot® sights are covered by a 5 years usable illumination warranty to original purchaser.