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Questions & Answers
Well, this fit on a Sig M18 without a plate? Expert Answer

Yes, the ADE Advanced Optics RD3-012 Delta Mini Reflex Red Dot Micro Sight uses the Deltapoint Pro footprint and would be directly compatible with the optic ready slide on your M18. No adapter plate would be required.

by Ethan, Gear Expert, September 24, 2024
What is the footprint?

This optic uses the Delta Point Pro footprint.

by GunzAndDrumzInArkansas, Verified Owner, April 12, 2025
Customer Reviews
Most Recent Reviews ADE RD3-012 Reflex Red Dot by Brandon Lightner, Verified Owner, May 31, 2025
The sight is well made and looks great. I purchased it for my Sig M18 and thought it would mount w/o an adapter plate but I was wrong. It is too long to fit in the pocket by a hair. I ordered the adapter plate from ADE’s website and it’s specifically...
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Read 1 Review
Color: FDE Reticle: Dot Illumination Color: Red Condition: New Red Dot Sights-Footprint: Deltapoint Pro

Code: 5L8-RD-GRBRD-RD3-012S

MPN: RD3-012S

UPC: 640978407694

List: $115.99Save 14%
$99.99

Product Info for ADE Advanced Optics RD3-012 Delta Mini Reflex Red Dot Micro Sight

Ade Advanced Optics first made its appearance in the firearms accessory industry by doing private label production for several Major manufacturers and retailers. During this period, Ade Advanced Optics began receiving requests from numerous customers for access to the affordable, high quality products that Ade Advanced Optics was capable of producing. By soliciting feedback from both clients and end users in 2010, Ade Advanced Optics was able to overcome the challenges a new company often faces when entering a global market and industry, especially one as competitive as the shooting, hunting, and outdoors industry.image

Specifications for ADE Advanced Optics RD3-012 Delta Mini Reflex Red Dot Micro Sight:

Manufacturer: ADE Advanced Optics
Color: FDE
Finish: Anodized
Fabric/Material: 6061 Aircraft Aluminum
Magnification: 1 x
Objective Lens Diameter: 26.5 mm
Reticle: Dot
Illumination Color: Red
Eye Relief: Unlimited
Adjustment Type: MOA
Adjustment Click Value: 1 MOA
Emitter Type: Open
Battery Type: CR1632
Fogproof: Yes
Weight: 1.05 oz
Condition: New
Red Dot Sights-Footprint: Deltapoint Pro
Attachment Type: Slide

Features of ADE Advanced Optics RD3-012 Delta Mini Reflex Red Dot Micro Sight

  • The sight has multi brightness level with TWO adjustment button. One to turn bright up and one to turn down. Hold the down button for 3 secs to power off. Every time you turn on the dot it stays the same brightness level last time it was turned off
  • Comes with a picatinny mounting base. It is also compatible with varies handgun mounting plates(SOLD SEPARATELY) that replace rear sight dovetail. It is also compatible to Optics Ready pistols such as Glock MOS, Springfield OSP, Taurus TORO using Pistol manufacturer provided optic mounting plate(SOLD SEPARATELY).
  • This GREEN dot fits directly on Glock MOS system with the #1 mount that comes with MOS without needing to remove the rear sight. This glock MOS #01 plate need to obtain from glock, not included in this green dot purchase.
  • Promotes rapid target acquisition while providing a precise point of aim; getting shots down range and on target fast. Top load System, no need to Remove the sight to change the Battery that requires re-sight in and waste ammo.
  • GREEN dot has multi brightness level with one adjustment button. Every time you turn on the dot it stays the same brightness level last time it was turned off
  • While it is possible to install the optic to handgun without the use of a Gunsmith, we recommend hiring a professional gunsmith. Please note. Unprofessional installation such as improper torque will result in screw loose, not holding zero, damage to the firearm/optic and personal injury.
  • ADE RD3-006B, RD3-009, RD3-012, and RD3-013 fit optic cut/plate that is compatible with Vortex Venom/Burris Fastfire/Doctor footprint
  • ADE RD3-018 Spike, RD3-021 Nuwa fit optic cut/plate that is compatible with Shield RMS/RMSC/Leopold Deltapoint Pro/Sig Romeo Zero footprint
  • ADE RD3-019 Stingray, RD3-020 Raptor, RD3-023 Valkyrie Gen2 fit optic cut/optic plate that is compatible with Trijicon RMR/ HS407C/HS507C/HS508T footprint

Package Contents:

  • ADE Advanced Optics RD3-012 Delta Mini Reflex Red Dot Micro Sight
  • Picatinny Plate
  • Lens Cloth
  • Screws
  • Tools
  • Instructions
  • Rubber Cover
  • Battery

ADE Advanced Optics RD3-012 Delta Mini Reflex Red Dot Micro Sight Orderable Models

List of Orderable Models

ADE Advanced Optics RD3-012 Delta Mini Reflex Red Dot Micro Sight, Dot Reticle, FDE, RD3-012S , MPN: RD3-012S , UPC: 640978407694 , Code: 5L8-RD-GRBRD-RD3-012S

ADE Advanced Optics RD3-012 Delta Mini Reflex Red Dot Micro Sight Unavailable & Discontinued Models

List of Unorderable Models

USED ADE Advanced Optics RD3-012 Delta Mini Reflex Red Dot Micro Sight, Dot Reticle, FDE, RD3-012S, EDEMO1, Condition Fair, Scratches , MPN: RD3-012S-EDEMO1 , Code: 5L8-RD-GRBRD-RD3-012S-EDEMO-SC-D
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