Viridian RFX44 Green-Dot Reflex Sight 1x21MMX16.50mm - 5 MOA Dot Compact Green-Dot Sight for Tactical Use - 981-0107
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Viridian
Overview
The Viridian RFX44 is a compact reflex sight featuring a 5 MOA green dot reticle, designed for quick target acquisition in tactical scenarios. Constructed from aluminum, this durable optic is well-suited for use on AR-15 builds, particularly those with a carbine gas system and chambered in 5.56 NATO. This sight is commonly found on builds where rapid sighting and accuracy are essential, making it a practical choice for dynamic shooting environments.
Specifications
Viridian RFX44 Green-Dot Reflex Sight 1x21MMX16.50mm - 5 MOA Dot Compact Green-Dot Sight for Tactical Use - 981-0107
Build history on GunPartPicker
Builders have been adding the Viridian RFX44 Green-Dot Reflex Sight 1x21MMX16.50mm - 5 MOA Dot Compact Green-Dot Sight for Tactical Use - 981-0107 to their builds on GunPartPicker since February 2026. All time, it ranks #105 of the 480 optics builders have added. Builds with this optic are nearly all chambered in 5.56 NATO, nearly all on carbine-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 5 of the 7 retailers we track have it in stock. It dipped to $297.49 at Brownells for a stretch in August 2026, under its usual $310.99, so sales do come around. Buying today, the lowest price is $297.49 at Brownells, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 17 builds that include this one
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Aero Precision M4A1 Clone Lower Receiver
Fortis SHIFT Vertical Grip - M-LOK
Radical Firearms 5.56 Socom Complete AR-15 Upper - Rpr M-LOK Handguard - 16"
FAXON Chameleon 5.56 Complete Nitride Bolt Carrier Group - FF556BCGCNITRIDE-NCR
Builds Featuring This Part
See all 1 →Builds in the community that include the Viridian RFX44 Green-Dot Reflex Sight 1x21mmx16.50mm - 5 MOA Dot Compact Green-Dot Sight for Tactical Use - 981-0107
| Build | Parts | Total |
|---|---|---|
 | 18 | $4702.26 |
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