The Aimpoint CompM4s was designed for users who require a professional quality red dot optic for use under extremely harsh conditions.


The U.S. Army has chosen a member of the Aimpoint CompM4 series of sights as their M68CCO (Close Combat Optic) for over two decades. The CompM4s holds that status today, with over 100,000 sights currently in use by the U.S. Armed Forces. The CompM4s is powered by a single AA battery for over 80,000 hours (8 years) of continuous use and over 500,000 hours in the night vision settings. The CompM4s has a low battery compartment. The CompM4s comes with a rubber bikini lens cover and the killFlash® anti-reflection device (ARD) to prevent glint from the front lens in the heat of battle. This configuration of the CompM4s contains the sight, a QRP2 mount and a standard spacer. The sight housing is constructed of hard-anodized aluminum alloy for optimal protection of the electronic and optical components in all types of environmental conditions. The 2 MOA red dot pairs perfectly with the Aimpoint 3XMag-1 magnifier and all generations of night vision devices.


The Aimpoint CompM4s sight is soldier tested and combat-proven, in other words an extremely robust high quality product.



  • 80,000 hours (over 8 years) of constant operation

  • Submersible to 45 meters (150 feet)
  • Weight 270 g / 9.5 oz (sight only)
  • Low battery compartment
  • Height of Optical Axis 39 mm (1.5 in) measured from top surface of mechanical interface
  • 7 night vision compatible settings and 9 daylight settings
  • 2 MOA dot size



General specifications

Size L x W x H: 135 x 76 x 80 mm / 5.3 x 3 x 3.1 in
Dot size: 2 MOA
NVD compatible: Yes
Eye relief: Unlimited
Mounting platform: Picatinny Rail
Weight: 410 g / 14.5 oz
Magnification: 1X - No Magnification
Transmission: Average 70% in the range 420 - 900 nm
Mounting solution: QRP2 Mount and Standard Spacer

Optical Information
Dot size: 2 MOA
Magnification: 1X - No Magnification
Transmission: Average 70% in the range 420 - 900 nm
Dot color: Red
Optical coating: Anti-reflex coating all surfaces and multilayer coating objective lens
Diode: LED (Light Emitting Diode) totally eye safe
* MOA (minute of angle): 1 MOA ≈ 30 mm at 100 meters ≈ 1 in at 100 yards
NVD compatible: Yes
Eye relief: Unlimited
Light source wavelength:  650 nm red light
Parallax: Operationally parallax free - No centering required
Power Source Information
Battery life: 80,000 h at setting 12 (15,000 Lux, room temperature)
Power switch: Rotary Switch
Battery type: AA, 1.5 - 5.0V, Alkaline / Lithium
Daylight settings (DL): 9
Physical Information
Material housing and tube: High Strength Aluminum
Color housing: Black
Adjustment 1 click =: 1 click = 16 mm at 100 m / 0.6 in at 100 yds
Size L x W x 135 x 76 x 80 mm / 5.3 x 3 x 3.1 in
Weight: 410 g / 14.5 oz
Surface finish housing: nodized, Semi-matte
Lens covers: Bikini Lens Cover, Rubber, Solid
Size L x W x H - Sight only: 120 x 53 x 60 mm / 4.7 x 2.1 x 2.4 in
Weight - Optic only: 270 g / 9.5 oz
Environmental Information
Water resistant: 45 m / 150 ft
Storage temperature: - 51°C to + 71°C / - 60°F to + 160°F
Humidity: Operable during and after Humidity. Limits: RH: 95%, Temp: +20°C to +50°C (+68°F to +122°F), cyclic
Shock: Operable before and after shock. Limits: X-axis: 500 g, 0.7 – 1.1 ms (3 shocks), Y-axis: 40g ±4g, 11 ±1ms (2 shocks in each direction, Z-axis: 40g ±4g, 11 ±1ms, 2 shocks in each direction.
Operating temperature: - 45°C to + 71°C / - 49°F to + 160°F
Temperature shock: Operable after a temperature shock between - 45°C and + 71°C (- 49°F and + 160°F)
Vibration: Withstands Vibration. Limits: Vibration, sinusoidal in a frequency range of 10-150 Hz. Frequency: 10-30 Hz, ±1.587 mm, Frequency: 30-150 Hz. 5.75 g, 1 octave/min. Direction: X, Y and Z, Time: 30 min/direction.

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