Review & Guide Information: The Trijicon ACOGs are internally-adjustable compact telescopic sights with tritium illuminated reticle patterns for use in low light or at night. Bindon Aiming Concept (BAC) models feature bright daytime reticles using fiber optics which collect ambient light. The ACOGs combine traditional precise distance marksmanship with close-in aiming speed. Although the ACOGs have many features which are very advantageous for military use they were developed by Trijicon without government funding.Designed for use with the M16 family every feature of its mechanical and optical design was chosen for a single purpose: to provide increased hit potential in all lighting conditions -- without failure-prone batteries. TA55: 5.5x50 Trijicon ACOG Red Chevron Dual Illumination ACOG 5.5x50 Red Chevron BAC Flattop.223 Reticle includes flat top adapter. The chevron reticle is designed to be zeroed using the tip at 100 meters. The width of the chevron at the base is 5.53 MOA which is “19 at 300 meters. This allows range estimation for silhouette targets. TA55A: 5.5x50 Trijicon ACOG Red Chevron Dual Illumination ACOG 5.5x50 Red Chevron BAC Flattop.308 Reticle includes flat top adapter. The chevron reticle is designed to be zeroed using the tip at 100 meters. The width of the chevron at the base is 5.53 MOA which is 19 in. at 300 meters. This allows range stimation for silhouette targets.
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