Aimpoint CompM3 Review


Aimpoint CompM3 red dot sight

Aimpoint CompM3 - bare unit

The Aimpoint CompM3 red dot sight is an ultra rugged reflex sight.

The Aimpoint CompM3 reflex sight builds on Aimpoint’s three decades of experience designing and manufacturing World-beating reflex sights. Availablre in 2 MOA and 4 MOA versions, the CompM3 is even tougher than their previous military red dot sight, the CompM2.


Aimpoint CompM3 reflex sight with 'Coyote' colored protective cover

Aimpoint CompM3 reflex sight with 'Coyote' colored cover

The main difference from the CompM2 is use of Aimpoint’s ACET technology which vastly increases battery life. The Aimpoint CompM3 is compatible with all generations of night vision.

Aimpoint CompM3 on Picatinny mount

Aimpoint CompM3 red dot sight on Picatinny mount

The Aimpoint CompM3 red dot sight was designed from the outset for use by the World’s militaries in the most demanding of conditions. That heritage makes it eminently suitable for hunting and sport shooting disciplines.

Replaceable rubber cover

The Aimpoint CompM3 red dot sight is supplied with a protective rubber cover to provide additional protection and safeguard the sight’s finish and resale value. The cover can is available in black or ‘coyote’ (dark earth) color at no extra cost.


Aimpoint CompM3 on AR15 and SIG carbines

Aimpoint CompM3 reflex sight on AR15 and SIG carbines

Unique features for CompM3

  • Compatible with every generation of NVD
  • New technology called ACET allows 50,000 hours of operation on one single battery (on setting 7 out of 10)
  • 500,000 hours of use on NVD setting
  • Unequalled light transmission
  • Available in 2 dot sizes (2 and 4 MOA)
  • Submersible to 45 meters (135 feet)
  • Comes with replaceable outer black rubber cover
  • Outer rubber cover also available in Dark Earth Brown


Aimpoint CompM3 reflex sight on M4 carbine

Aimpoint CompM3 reflex sight on M4 carbine

Standard features for all Aimpoint® sights

  • Unlimited field of view
  • Parallax-free and unlimited eye relief
  • Unaffected by extreme weather conditions
  • Rugged, durable construction
  • No hazardous materials
  • No laser emission that could be harmful to your eyes
  • Increased aiming confidence
Aimpoint CompM3 on H&K G36C

Aimpoint CompM3 on H&K G36C

Article number 11403 (CompM3 4MOA) 11408 (CompM3 2MOA)
Technology ACET (Advanced Circuit Efficiency Technology)
Working principle Reflex collimator sight – red dot sight
Lightsource LED (Light Emitting Diode) totally eye-safe
Lightsource wavelength 650 mn red light
Red dot size in MOA (minute of angle)* 4 or 2
Parallax Absence of parallax – No centering required
Eye relief Unlimited
Night vision compatibility Yes
Anti-reflex coating all surfaces & multi-layer coating objective lens Yes
Magnification No magnification (1X)
Battery One 3V Lithium battery, type 2L76 or DL1/3N
Battery life in hours ** 50 000 (over 5 years of continuous use)
Battery life in hours **at NVD settings *** 500 000
Dot intensity adjustment Manual rotary switch
Daylight (DL) settings 6 DL of which one extra bright
NVD settings 4 NVD
Material housing Extruded high strength aluminum
Surface finish Hard anodized, matte
Color housing Black
Adjustment 1 click 13mm at 100m, (1/2” at 100yds)
Mounting methods 1 ring, ø 30mm
Temperature range -45° – +71° C, (50°- +160° F)
Water resistance – submersible to 45m, (150ft)
Radioactive components used None
Length 130mm, (5.1”)
Width/height sight only 55 x 55mm, (2.2” x 2.2”)
Maximum ring width 30mm
Objective diameter 38mm, (1.5”)
Tube diameter 30mm
Weight sight only 220g, (7.8oz)****
Weight rubber cover 50g, (1.7oz)

Check the price of the Aimpoint CompM3 at Brownells, a name you can trust.

If you purchase an Aimpoint CompM3 red dot sight from Brownells I will be paid an affiliate commission. This will help keep this site online and will not affect your purchase price. Thank you.

* 1 MOA ˜ 30 mm at 100 meters ˜ 1″ at 100 yards.

** at room temperature & at setting 7 out of 10.

*** Night Vision Device.

**** Dimensions and weight for CompM2, ML2, M3, ML3 are given with flip-up lens covers.

Specifications are subject to change without notice.

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