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Questions & Answers
Does it fit M18 without modifications? Manufacturer Answer

The Defender-ST would be a compatible option with your M18, as the slide is cut to otherwise accept the DeltaPoint Pro footprint, employed by the Defender!

by Vortex, Manufacturer, May 29, 2024
Will this fit a Hellcat Pro OSP? Manufacturer Answer

Unfortunately no. The Hellcat would work with the Defender-CCW, however, and it would be a direct-to-slide fit, otherwise!

by Vortex, Manufacturer, May 29, 2024
Customer Reviews
Helpful Positive Review
Excellent! by Michelle, Verified Owner, August 3, 2025
I was amazed at the price and how fast I received the optic! Placed it on my brand new PRODIGY. East optic I own to zero! Two rounds and I was on target. I will purchase again and from Opticsplanet. I also love the ease of using the website. Thanks f...
Read More...
1/1 found this helpful
Helpful Positive Review
Great unit by Jeffb, Verified Owner, July 4, 2025
Got this to go on a ruger 22/45 compact screwed right on the picattany rail looks great . Turns on and off easily bright dot. Great value.
3/3 found this helpful
Helpful Positive Review
Great optic by Jay, Verified Owner, June 4, 2025
I have a few Vortex optics and Optics Planet always has what I need to finish my firearms the way I like them done.Besides that you just can’t beat the Vortex warranty…
2/2 found this helpful
Helpful Positive Review
Solid budget optic by Frank, Verified Owner, June 1, 2025
Easy to mount on pic rail for a shotgun. A bit cumbersome adjustment but was able to zero it in.
2/3 found this helpful
Helpful Positive Review
Nice red dot, poor locking screw location by Mr Smooth, Verified Owner, August 15, 2025
Nice dot, easy to use and holds zero. Battery can only be replaced with dot removal. Elevation and windage locking screws can be block by the firearms rear sight. Can be frustrating
1/1 found this helpful
Helpful Positive Review
Great optic by Jay, Verified Owner, June 4, 2025
I have a few Vortex optics and Optics Planet always has what I need to finish my firearms the way I like them done.Besides that you just can’t beat the Vortex warranty…
2/2 found this helpful
Read All 558 Reviews

We've got an AWESOME deal for you!

Blazin' Deal
Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
Color:
FDE
Reticle:
6 MOA Dot
Illumination Color:
Red
Included Accessories:
None, OP Exclusive - Vortex OPMOD Viper 1x24mm 6 MOA Red Dot Sight, FDE
Condition:
New

Code: VX-RD-VRD-6-VRD-6-OP-KIT2023

MPN: VRD-6-OP-KIT2023

Blazin' Deal
List: $349.99Save 70%
$104.55

Product Info for Vortex Viper 1x24mm Reflex Red Dot Sight

These Vortex Viper Red Dot Sights feature bright red 6 MOA reticles for clear targeting in any light levels or background colors. These Red Dot Sights from Vortex Optics have easy to use power and illumination controls on the left side so you can make adjustments without changing your sighting position.Vortex Viper Red Dot Sights mount exceptionally low, so they are a great choice for handguns with cutout slides.image

Specifications for Vortex Viper 1x24mm Reflex Red Dot Sight:

Manufacturer: Vortex
Color: FDE
Finish: Hard Anodized Matte
Fabric/Material: Aluminum Alloy Chassis
Magnification: 1 x
Objective Lens Diameter: 24 mm
Objective Window Size: 24 mm
Reticle: 6 MOA Dot
Illumination Type: LED
Illumination Color: Red
Brightness Settings: 10
Eye Relief: Unlimited
Adjustment Type: MOA
Adjustment Click Value: 1 MOA
Emitter Type: Open
Parallax: Parallax Free
Lens Material: Glass
Optical Coating: Fully Multi-Coated
Battery Type: CR2032, Stand Alone Lithium
Battery Quantity: 1
Battery Life: 150 - 30000 hours
Operating Temperature: 22 - 122 Fahrenheit
Water Resistance Level: Waterproof
Water Resistant Mark: 1 m
Shockproof: Yes
Gun Make: AR Platform
Length: 1.8 in
Width: 1.81 in
Height: 1.02 in
Weight: 1.1 oz
Included Accessories: OP Exclusive - Vortex OPMOD Viper 1x24mm 6 MOA Red Dot Sight, FDE, None
Condition: New
Package Type: Box
Magnification Type: Fixed
Lens Finish: ArmorTek
Brightness Index: 10
Mount Type: Weaver
Gun Type: Pistol, Rifle, Shotgun
Attachment Type: Picatinny, Weaver
Front Sight Color: Red
W/E Travel at 100 Yds: 120 MOA

Features of Vortex Viper 1x24mm Reflex Red Dot Sight

  • Fully Multi-Coated
  • Unlimited Eye Relief
  • Parallax Free
  • Single-Piece Chassis
  • Waterproof
  • Shockproof
  • Hard Anondized Finish
  • ArmorTek

Package Contents:

  • Vortex Viper 1x24mm Reflex Red Dot Sight

Vortex Viper 1x24mm Reflex Red Dot Sight Orderable Models

List of Orderable Models

  • OP Exclusive - Vortex OPMOD Viper 1x24mm 6 MOA Red Dot Sight, FDE , MPN: VRD-6-OP-KIT2023 , Code: VX-RD-VRD-6-VRD-6-OP-KIT2023

Vortex Viper 1x24mm Reflex Red Dot Sight Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, Vortex Viper 1x24mm 6 MOA Red Dot Sight, CR2032 Battery, Black, VRD-6, Black, Viper Red Dot, VRD-6 , MPN: VRD-6-DEMO , Code: VX-RD-VRD-6-VRD-6-DEMO
  • Vortex Viper 1x24mm, 6 MOA Red Dot Sight CR2032 Battery, Black, VRD-6 , MPN: VRD-6 , UPC: 875874006027 , Code: VX-RD-VRD-6-VRD-6
  • Vortex OPMOD Viper 1x24mm 6 MOA Red Dot Sight, FDE , MPN: VRD-6-OP-KIT3 , Code: VX-RD-VRD-6-VRD-6-OP-KIT3
  • USED Vortex Viper 1x24mm, 6 MOA Red Dot Sight CR2032 Battery, Black, VRD-6, EDEMO6, Condition Like New, Inspect and Rebox , MPN: VRD-6-EDEMO6 , Code: VX-RD-VRD-6-VRD-6-EDEMO-RE-A
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, FDE, Viper Red Dot and TRYBE Defense Pistol Slide, Glock 17, Gen 4, Viper Cut, Version 2, FDE Cerakote , MPN: VRD-6-OP-KIT3-KIT2 , Code: VX-RD-VRD-6-VRD-6-OP-KIT5
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, FDE, Viper Red Dot and TRYBE Defense Pistol Slide, Glock 26, Gen 3/4, Viper Cut, Version 2, FDE Cerakote , MPN: VRD-6-OP-KIT3-KIT7 , Code: VX-RD-VRD-6-VRD-6-OP-KIT10
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, FDE, Viper Red Dot and TRYBE Defense Pistol Slide, Glock 17, Gen 5, Viper Cut, Version 2, FDE Cerakote , MPN: VRD-6-OP-KIT3-KIT3 , Code: VX-RD-VRD-6-VRD-6-OP-KIT6
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, Black, Viper Red Dot and TRYBE Defense Pistol Slide, Glock 17, Gen 5, Viper Cut, Version 2, Black Cerakote , MPN: VRD-6-KIT4 , Code: VX-RD-VRD-6-VRD-6-KIT4
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, FDE, Viper Red Dot and TRYBE Defense Pistol Slide, Glock 19, Gen 4, Viper Cut, Version 2, FDE Cerakote , MPN: VRD-6-OP-KIT3-KIT5 , Code: VX-RD-VRD-6-VRD-6-OP-KIT8
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, Black, Viper Red Dot and TRYBE Defense Sig Sauer P320 Pistol Slide, Viper Cut, Black , MPN: VRD-6-KIT9 , Code: VX-RD-VRD-6-VRD-6-KIT9
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, FDE, Viper Red Dot and TRYBE Defense Pistol Slide, Glock 19, Gen 3, Viper Cut, Version 2, FDE Cerakote , MPN: VRD-6-OP-KIT3-KIT4 , Code: VX-RD-VRD-6-VRD-6-OP-KIT7
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, Black, Viper RedDot and TRYBE Defense Pistol Slide, Glock 19, Gen 5, ViperCut, Version 2, Black Cerakote , MPN: VRD-6-KIT7 , Code: VX-RD-VRD-6-VRD-6-KIT7
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, Black, Viper RedDot and TRYBE Defense Pistol Slide, Glock 19, Gen 4, ViperCut, Version 2, Black Cerakote , MPN: VRD-6-KIT6 , Code: VX-RD-VRD-6-VRD-6-KIT6
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, Black, Viper RedDot and TRYBE Defense Pistol Slide, Glock 19, Gen 3, ViperCut, Version 2, Black Cerakote , MPN: VRD-6-KIT5 , Code: VX-RD-VRD-6-VRD-6-KIT5
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, Black, Viper RedDot and TRYBE Defense Pistol Slide, Glock 17, Gen 3, ViperCut, Version 2, Black Cerakote , MPN: VRD-6-KIT10 , Code: VX-RD-VRD-6-VRD-6-KIT10
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, Black, Viper RedDot and TRYBE Defense Pistol Slide, Glock 17, Gen 4, ViperCut, Version 2, Black Cerakote , MPN: VRD-6-KIT3 , Code: VX-RD-VRD-6-VRD-6-KIT3
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, Black, Viper Red Dot and TRYBE Defense Pistol Slide, Glock 26, Gen 3/4, Viper Cut, Version 2, Black Cerakote , MPN: VRD-6-KIT8 , Code: VX-RD-VRD-6-VRD-6-KIT8
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight with 3x Magnifier w/ Flip Mount, CR2032 Battery, Black, VRD-6-KIT1 , MPN: VRD-6-KIT1 , Code: VX-RD-VRD-6-VRD-6-KIT1
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, FDE, Viper Red Dot and TRYBE Defense Sig Sauer P320 Pistol Slide, Viper Cut, FDE , MPN: VRD-6-OP-KIT3-KIT8 , Code: VX-RD-VRD-6-VRD-6-OP-KIT11
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, FDE, Viper Red Dot and TRYBE Defense Pistol Slide, Glock 17, Gen 3, Viper Cut, Version 2, FDE Cerakote , MPN: VRD-6-OP-KIT3-KIT1 , Code: VX-RD-VRD-6-VRD-6-OP-KIT4
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight, FDE, Viper Red Dot and TRYBE Defense Pistol Slide, Glock 19, Gen 5, Viper Cut, Version 2, FDE Cerakote , MPN: VRD-6-OP-KIT3-KIT6 , Code: VX-RD-VRD-6-VRD-6-OP-KIT9
  • Vortex Viper 1x24mm 6 MOA Red Dot Sight with Vortex Micro 3x Magnifier , MPN: VRD-6-KIT2 , Code: VX-RD-VRD-6-VRD-6-KIT2
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