Aimpoint CompM4

The Aimpoint CompM4 is a non-magnified red dot style gun sight adopted by the U.S. Armed Forces, designated the M68 CCO (Close Combat Optic).

There are a total of 16 brightness settings for the LED, the lower 7 intended for use with night vision devices and the upper 9 for daylight.

As in other reflex sights, the point of aim will change position based on eye position at other ranges with the maximum error being equal to the diameter of the sight's optical window at short range.

[1] There are currently two variants available; the standard CompM4 and the CompM4S, the latter being the same in terms of features and functionality, but having the battery compartment & power control knob mounted near the bottom of the sight instead of near the top.

In 2009, the US Army selected the CompM4s to fulfill the M68 CCO program requirements and ordered 565,783 of the sights.

The U.S. Army 's newest version of the M68 Close Combat Optic (CCO) is the Aimpoint CompM4.
The shooter's end of the CompM4 with the power control knob
An M4 carbine with a Picatinny rail system on the upper receiver and four-sided handguard , showing a GPS-02 "Grip Pod", a type of vertical grip that has a deployable bipod inside the handle and an M68 CCO optical sight
C7NLD assault rifle with Aimpoint CompM4 and accompanying Aimpoint 3XMag-1 magnifier at its rear