Global Defense Initiatives MT6-OSM Aimpoint Micro Lower 3rd Co-Witness
MT6M
MT6-OSM (Optical Sight Mount) Sight mount for Aimpoint Micro T-1, H-1, and R-1 Red Dot reflex sights: M4/M16 Compatible Lower 3rd Co-witness: Front sight post tip in lower 3rd of sight picture
