The Trijicon ACOG (Advanced Combat Optical Gunsight) is a fixed power, compact
riflescope with an illuminated reticle pattern for use in bright to low/no light. The ACOG is
designed to be extremely durable and reliable. Combining traditional, precise distance
marksmanship with CQB speed, many variants include a bullet drop compensated (BDC)
reticle. Every feature of its design was chosen for a single purpose: to provide increased
hit potential in all lighting conditions.