A reflex sight has been spotted on the mp5.

Non-magnifying reflector or "reflex" sights have the ability to be theoretically "parallax free".

He was using the reflex sight on his M4 to look for any movement at the far end of the road.

Others include Docter or Trijicon reflex sights mounted on top.

The game's main weapon, the M4 carbine, has a reflex sight that can be aimed through for zooming in on distant targets.

For aiming telescopes, reflex sights are popular, often in conjunction with a small telescope with a crosshair reticle.

The reflex sight, such as the Telrad, makes aiming the telescope on an astronomical object or a region of the sky quite easy.

The scope was replaced with a Picatinny rail that later had a reflex sight attached to it.

The reflex sight is illuminated by ambient light during the day and uses battery powered illumination for use at night.

It can be used with reflex sights and laser pointers.