TAC Vector Optics Apophis Tactical 1-6x28 First Focal Plane Compact 35mm Riflescope Illuminated Reticle fit .223 .308 DPMS Bushmaster Ruger SR-556 Color Black First Focal Plane, 35mm Monotube, With Tactical Low Weaver Mount Rings, Flip-up Caps Long Eye Relief, Two Eyes Open at 1x Magnification Super Compact Only in 196mm 7.7 inch, M4-62 Etched Glass Reticle Green and Red Side Illumination and Designed for Heavy Recoil Caliber