Aimpoint CompM4

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

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). It is produced by the Swedish company Aimpoint and is the successor to the earlier M68CCO, the Aimpoint CompM2.