Excellent first red dot - ADE Advanced Optics Delta RD3-012 1x Reflex Red Dot Sight w/Optic Mount Plate S&W MP/MP 2.0 Shield/Standard Picatinny Mount

This was my first pistol red dot, and I couldn't be happier. The dot is crisp, the window is easy to look through, and the included mounting plate fit my Shield exactly as described. After getting it zeroed, it has stayed perfectly on target through several range trips.