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Questions & Answers
Will this work as a CQB secondary optic on my AR10? Expert Answer

Yes, however, you would need an offset mount as one is not included with the optic. Something like the Leupold DeltaPoint Pro 45 Degree AR Mount (linked below) would allow you to mount this optic offset to your primary optic with the use of your flattop picatinny rail.
https://www.opticsplanet.com/leupold-deltapoint-pro-45-degree-ar-mount.html

by Ethan, Gear Expert, December 17, 2025
Customer Reviews
Helpful Positive Review
Vortex Defender XL Green Dot 3 MOA by Dogstar, December 1, 2025
I bought the Vortex Defender XL to go on a pistol that had a Deltapoint adapter plate for . Green dot is excellent . Shake awake and auto shut off is a must . Large window is fantastic ( a little taller but not as wide as Holosun 507 Comp ) . Top ins...
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1/1 found this helpful
Helpful Positive Review
Great dots by John R, Verified Owner, December 13, 2025
I have 2 of these on my competition guns. The glass is real nice and I like the top tray batter compartment. It’s nice they take 2032 batteries too and great warranty if I ever have to use it. It’s also nice they include screws for every mounting sit...
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1/1 found this helpful
Helpful Positive Review
Great optic by 1stShotcounts, Verified Owner, December 30, 2025
Excellent optic, great value! Huge window and easy to find dot. The green really jumps out!
1/1 found this helpful
Helpful Positive Review
Well worth it by Jack, Verified Owner, December 30, 2025
This green dot optic is everything I was looking for. It attaches easily and securely. The window is massive and crystal clear showing the green dot cleanly.
1/1 found this helpful
Most Recent Reviews
Huge window! by Push4331, Verified Owner, February 12, 2026
I love the huge window and the dot is easy to find. Its built like tank and locks up to my PDP like it was made for it.
Most Recent Reviews
Vortex Defender XL by livefreeordie, Verified Owner, February 5, 2026
Vortex has been my new go to optic for their quality, price point, and lifetime warranty. They are really hard to beat in my opinion. Definitely recommend!
Read All 13 Reviews
Color:
Black
Reticle:
3 MOA
Illumination Color:
Green
Red Dot Sights-Footprint:
Deltapoint Pro

Code: VX-RD-98KFC-DFXL-MGD3

MPN: DFXL-MGD3

UPC: 843829145817

List: $599.99Save 42%
$348.49

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OP Bucks$11.55

Product Info for Vortex Defender-XL 1x 25 mm Reflex Micro Green Dot Sight

The rush of competitive shooting may bring us all together. But when you want an optic that sets you apart, depend on the Defender-XL. Target to target. Stage to stage. It's built tough as nails around a massive sight window that delivers greater peripheral vision and increasing speed for follow-up shots so you always come out on top.image

Specifications for Vortex Defender-XL 1x 25 mm Reflex Micro Green Dot Sight:

Manufacturer: Vortex
Color: Black
Magnification: 1 x
Objective Lens Diameter: 25 mm
Reticle: 3 MOA
Illumination Color: Green
Eye Relief: Unlimited
Adjustment Click Value: 1 MOA
Battery Type: Lithium Metal, CR2032
Weight: 1.93 oz
Red Dot Sights-Footprint: Deltapoint Pro

Features of Vortex Defender-XL 1x 25 mm Reflex Micro Green Dot Sight:

  • Bright Green Dot
  • Large Viewing Window
  • ShockShield Polymer Insert
  • Fast-Rack Texturing
  • Motion Activation with 10 Minute Auto-Shutoff
  • Button Lockout
  • Top Mount Battery
  • 10 Daylight Bright Brightness Settings
  • Night-Vision Compatibility
  • Parallax Free
  • Unlimited Eye Relief
  • Low-Glare Matte Black Anodized
  • Single-Piece Chassis
  • Waterproof
  • Fogproof
  • Shockproof

Package Contents:

  • Vortex Defender-XL 1x 25 mm Reflex Micro Green Dot Sight
  • Picatinny Mount
  • Custom Tool
  • Most Common Mounting Screw Sets
  • Lens Cloth
  • CR2032 Battery
  • Rubber Cover
  • Glock MOS Plate

Vortex Defender-XL 1x 25 mm Reflex Micro Green Dot Sight Orderable Models

List of Orderable Models

  • Vortex Defender-XL 1x 25mm Reflex Micro Green Dot Sight, 3 MOA, Black, DFXL-MGD3 , MPN: DFXL-MGD3 , UPC: 843829145817 , Code: VX-RD-98KFC-DFXL-MGD3
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