The M21 reflex sight provides constant, all-light aiming capability,
without batteries. Designed through close collaboration with Israeli
Special Forces, the M21 was the first reflex sight in the world
designed for close quarter combat. It is battle proven, reflexive to use,
deadly accurate and totally reliable. The M21’s large 30mm diameter
lens allows rapid target acquisition with both eyes open. Reticle
illumination is achieved by a protected fiber optic light collector system
during the day and by a self-powered tritium light source at night.
Transition between the two systems is instantaneous and automatic to
assure good contrast between the aiming dot and the target area. The
M21 is night vision compatible. The M21 is compatible with magnifiers
which allows the shooter to engage targets at a greater distance.