If you are looking for a small reflex sight, then check out the BSA Mini Panoramic Red Dot Sight. This little red dot has a 3 MOA dot reticle and is waterproof and shockproof. It has two selectable brightness levels and can be adjusted for windage and elevation. This sight comes in a matte black finish.

Specifications and Features:
BSA
Mini Panoramic Red Dot Sight
3 MOA Dot
Matte Black Finish
1x Magnification
24x17mm Objective Lens
Weaver Rail Mount
Waterproof and Shockproof
Two Selectable Brightness Levels
Windage and Elevation Adjustments
Hard Plastic Sight Cover