Fits perfectly. bright laser - Streamlight TLR-6 Taurus GX4 LED Weapon Light w/Red Laser

Little micro 9s are tough to sight in with such a short sight radius. Add the DAO only trigger and well you get shot groupings spread out quite a bit. This laser\light combo by stream light fits perfectly.Nice and snug. The light is only 100 lumen but in pitch black it is plenty bright. No strobe effect and only one brightness setting. So take 1 star away for lack of features. It is light on only, light +laser on, or laser only on. That's all you get. It takes 2 3v miniature batteries which are pricey in stores but streamlight sells a pack of 10 batteries for a really good price. That should outlast you the light or laser lifespan.
The really nice thing about this style trigger guard combo is the batteries can be quickly changed out with no tools needed and without having to remove the light\laser combo from the firearm. It has a swinging battery door that snaps latched requiring just a fingernail to open and change batteries. So your zero won't shift.
I found the zero to be very close to being spot on at 15yds.
The holiday sale price was very good with free fast shipping.