Installing your Red Dot Optic

Installing your red dot optic onto your slide:

:27 Direct Mount versus Slide Mount
:57 Prep for Mounting your Red Dot Optic (remove all oils)
1:48 Proper Torque, Using a Torx Limiter and making sure the optic is flat and flush
2:51: The 509T Optic Fit and Groove
3:14 Marking your screws and why it's important to do so.