TAC Vector Optics Tactical First Focal Plane Compact 35mm Riflescope Apophis 1-6x28 Illuminated Reticle fit .223 .308 DPMS Bushmaster Ruger SR-556 Color Black Super Compact Only in 196mm 7.7 inch M4-62 Etched Glass Reticle (Style 1) Long Eye Relief, Two Eyes Open at 1x Magnification Advantage in Military, Law Enforcement and hunting; Lifetime Warranty Green and Red Illumination