Advanced Combat Optical Gunsight

TA31RCO variant of the ACOG which is designated as the M150 RCO in United States Army service

The Advanced Combat Optical Gunsight (ACOG) is a series of prismatic telescopic sights manufactured by Trijicon. The ACOG was originally designed to be used on the M16 rifle and M4 carbine, but Trijicon has also developed ACOG accessories for other firearms. Models provide fixed-power magnification levels from 1.25× to 6×.[1] ACOG reticles are illuminated at night by an internal tritium phosphor. Some versions have an additional daytime reticle illumination via a passive external fiberoptic light pipe or are LED-illuminated using a dry battery. The first ACOG model, known as the TA01, was released in 1987. [2]

Down-range ACOG sight picture
  1. ^ "Official Listing of ACOG models". Archived from the original on 2011-02-04. Retrieved 2011-02-11.
  2. ^ "Acog History". Trijicon Acog.com.

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