Viridian RFX44 Green-Dot Reflex Sight 1x21MMX16.50mm - 5 MOA Dot Compact Green-Dot Sight for Tactical Use - 981-0107
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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
Available Merchants(6)
Prices checked
Price Alert
October 2026 on GunPartPicker
Viridian RFX44 Green-Dot Reflex Sight 1x21MMX16.50mm - 5 MOA Dot Compact Green-Dot Sight for Tactical Use - 981-0107 ranked #110 of the 220 optics builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #123 of the 584 optics builders have added. Builds with this optic are mostly chambered in 5.56 NATO (71%, then .223 Wylde 14%), split between mid-length (43%) and carbine-length (29%) gas systems, and mostly AR-15 (88%, then AR-9 12%).
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today 5 of the 6 retailers we track have it in stock. It dipped to $297.49 at Brownells for a stretch in October 2026, well under its usual $349, so sales do come around. Buying today, the lowest price is $297.49 at Brownells, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the 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
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all builds →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 | $4273.98 |
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