M&P9 M2.0 Slide Cut For Optical Sight Installation Updates your trusted M&P9 M2.0 pistol to take adavantage of today's great optic sights. INCLUDES: SLIDE AND OPTIC HEIGHT SIGHTS ONLY. Use your original frame assembly, barrel, and recoil spring. For use with 4" barrels. Optic Ready - With the C.O.R.E. plate and screw system, the user can mount a variety of aftermarket optics systems on these slides. Drop-in Fit - Change the slide on your M&P pistol to swap between various optical sight options with greater ease. Co-witness Height White Dot Sights - Provides an optimal sight picture in poor lighting conditions. Allows use of open sights when optical sight is mounted.