Aim faster with the Primary Arms GLx MD-21S Micro Red Dot. Their most advanced micro red dot. The GLx MD-21s features a blazingly bright emitter, intuitive push-button controls, and a powerful solar cell that can fully illuminate your optic from sunlight alone.FeaturesSolar Power Acts as Optic’s Primary Power Source in Normal Lighting ConditionsMulti-Select ReticlePush Button ControlsMicro Red Dot Footprint COmpatible with Most Aftermarket Mounts and Risers
UTG OP3 Micro SLS Reflex Red Dot Sight 4 MOA with Low Profile Picatinny Mounting Base Matte
$129.97 
TRUGLO Tru-Brite Reflex Red Dot Sight Red and Green 4-Pattern Reticle (2.5 MOA Dot, 5 MOA Dot, 2.5 MOA Circle Dot, 5 MOA Circle Dot) with Integral Weaver Base Matte Black
$101.99
Primary Arms GLx MD-21S Micro Dot Red Dot Sight 2 MOA Matte Black
$219.99
