Crimson Trace RAD Red Dot
Battery Life: 20,000 Hours
Top Accessible Battery Compartment
Easy-Rack Textured Sides for Enhanced Grip
3 MOA
Open Reflex Sight
Holosun Technologies 507C Red Dot
Parallax free optical design, with unlimited Eye relief/multi-reticle System
Shake awake technology with last setting recall
Solar cell and high capacity...
Holosun 507 Elite Competition Red Dot
Large 1.1" x 0.87" Objective Lens
CRS (Competition Reticle System) Multi Reticle System
650nm Red Super LED
2 MOA Center Dot (8/20/32 MOA Circle)