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DUO 5 Package (Spek Red dot w/ 5x Magnifier)

The Dual Use Optic, DUO 5 optic package consists of the Spek red dot and flik5 fixed power magnifier. This optical package is smaller and lighter than most red dot and magnifier combinations and provides immediate transitioning from 1X to 5X and back. The magnifier includes ADM’s patented QD Autolock lever for quick removal or attachment and is offered in either co-witness or lower 1/3 co-witness red dot height positions.
Out of stock
  • Overview
  • Reviews
  • Extended Warranty
  • Related Items


SPEK Red Dot

  • Magnification: 1X
  • Eye Relief: Unlimited
  • Objective Lens Diameter: 20 mm
  • Dot Size: 2 MOA
  • Adjustment Graduation: 1 MOA
  • Adjustment Range: 36 MOA
  • Windage/Elevation Adjustments: Tool-less
  • Day Brightness Settings: 10
  • Night Vision Settings: 3
  • Battery Type: AAA (Lithium, Alkaline, Rechargeable)
  • Battery Life: 5 Years (Lithium battery, medium intensity, at 22º C
  • Length/Width/Height: 2.6 in. x 1.6 in. x 1.7 in. (65 mm x 41 mm x 42 mm)
  • Optic Weight (No Mount): 3.9 oz (110 g)
  • Auto-Shutoff: After 16 hours


flik5 Magnifier

  • Magnification: 5X
  • Eye Relief: 2.5 in. / 64 mm
  • Exit Pupil Diameter: .18 in. / 4.7 mm
  • Objective Lens Diameter: .98 in. / 25 mm
  • Field of View (@ 100 yds.): 4.38º / 23.0 ft / 7.67 m
  • Diopter Adjustment: -2.5 to +2
  • Azimuth Adjustment: Tool-less
  • Fog Resistant: Yes
  • Water Resistant: Yes
  • Length/Width/Height: 3.7 in. x 1.9 in. x 2.0 in.(94 mm x 48 mm x 51 mm)
  • Optic Weight (No Mount): 8.2 oz (230 g)
  • Ambidextrous: Yes - Can be configured for LH or RH users

FFL Terms and Conditions - Any items placed on the same order as a firearm/lower receiver will also be shipped to the FFL. If you would like additional items shipped to you directly, please place them on a separate order. To expedite your order, please have your dealer fax or email their FFL to us. If the dealer you are using to transfer a firearm has not sent us a currently updated FFL to put on file, there will be an extended period of time needed to process your order. Due to the high volume of orders, please allow up to two weeks for delivery of firearms. Email:

Extended Warranty

American Defense Mfg. is proud to offer a Limited Lifetime Warranty on the flik3/flik5 magnifiers. We warrant that your magnifier will be free of defects in materials or workmanship for the life of the product. Should your flik3/flik5 ever experience any defects in materials or workmanship, we will repair or replace it, at the discretion of ADM, with a comparable product, free of charge.

The Limited Lifetime Warranty does not include the following:

  • Abuse, misuse, improper installation or modification, alterations or accidents.
  • Theft, loss, neglect, or vandalism.
  • Cosmetic damage that does not affect the product’s use, operation, or performance, as determined by ADM.
  • Any defect or damage caused by repairs or services not performed by ADM.