The Viridian RFX44 Compact (brand part no. 981-0109) is a green dot reflex sight built for Glock MOS pistols that want a rugged, closed-emitter optic without excess bulk. Viridian machines the housing from 6061 aluminum and applies fully multi-coated lenses, closed-emitter technology to keep debris off the emitter, and audible and tactile click adjustments so shooters can zero the optic by feel. Instant-On activation wakes the dot the moment the pistol moves, so there’s no power switch to find under stress. Among red dot sights, the RFX44 suits Glock MOS owners who want a compact, closed-emitter reflex sight for carry or duty use.

Key Specifications

• The reticle is a 5 MOA dot.
• The housing is machined from 6061 aluminum.
• The lenses are fully multi-coated.
• The emitter design is closed, keeping debris off the internal emitter.
• Activation is Instant-On, waking the dot from motion.
• Windage and elevation adjust in 1 MOA clicks with audible and tactile feedback.
• The mount pattern fits the Glock MOS footprint.
• Eye relief is unlimited.

Frequently Asked Questions

Does this fit a Glock MOS slide? Yes, the RFX44 is built for the Glock MOS optic-ready footprint.

How does Instant-On activation work? The optic senses motion and wakes automatically, so there’s no manual power switch to operate before firing.

What color is the reticle? Green, in a 5 MOA dot.

Buy the Viridian RFX44 Compact Green Dot

A closed-emitter green dot built for Glock MOS pistols with Instant-On activation is exactly what the RFX44 Compact delivers. Order it from our Lubbock, Texas gun shop and it ships fast to your door.