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Primary Arms 3-18x50mm FFP Rifle Scope - Illuminated ACSS HUD DMR 5.56 NATO Reticle

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Primary Arms 3-18x50mm FFP Rifle Scope - Illuminated ACSS HUD DMR 5.56 NATO Reticle


The Primary Arms 3-18x50mm first focal plane illuminated rifle scope punches far outside of its weight class. At 3x magnification, fast snap shots at close range are a breeze with the daylight bright illuminated reticle, but the scope easily allows shooters to reach the 1,000 yard line when cranked up to the full 18x available at the top end. To make the best of the reticle at every magnification, it has been etched into the first focal plane. This allows it to be 'true' at every magnification, allowing the ranging, hold overs, and wind holds to be used as long as you can see them.

The 3-18x50mm is equipped with the ACSS HUD DMR 5.56 reticle, the most advanced moving target reticle in the world. Capable of guiding the shooter to first shot hits on moving targets out to a never before seen 600 yards and even accounts for three different target speeds. You can't hit any target if you don't know how far out they are, and the ACSS HUD takes the guess work out of range estimation. The integrated ranging system quickly and accurately provides target ranging, wind holds, and bullet drop compensation out to a full 1,000 yards, compatible with 55-grain M193, 62-grain M855, and 77-grain Mk262 5.56 NATO ammunition.

The 3-18x50mm scope body is their most advanced to date, offering new innovative features, as well as old favorites. A removable and replaceable fin on the power ring allows for rapid adjustment of the magnification range just like a throw lever, with placement of the fin entirely at the discretion of the operator. The improved turrets have tactile and audible 0.1 MIL click adjustments, as well as offering easy reset once you've got your zero and secure locking to prevent accidental adjustments. The illumination turret offers six settings with an 'OFF' setting between each for fast switching to your preferred setting. A smooth parallax adjustment and fast focus eye piece work together to provide a perfectly crisp image of the target and reticle.

Featuring clear glass, forgiving eye relief/exit pupil characteristics, and efficient industrial design, the 3-18x50 FFP Scope with ACSS HUD DMR reticle is backed up by the Primary Arms Lifetime Warranty.


  • First Focal Plane reticle is true at every magnification
  • Partial reticle illumination of the horseshoe and chevron is daylight bright
  • ACSS HUD DMR 5.56 Reticle provides moving target holds out to 600 yards, as well as ranging, bullet drop, and wind holds out to 1,000 yards
  • Tuned for M193, M855 and Mk262 5.56 NATO ammunition
  • Chevron central aiming point provides infinitely small aiming point
  • Replaceable power ring fin can be positioned to user preference
  • Locking, Zero resettable turrets
  • 30mm main tube
  • Weight: 25.4 oz. with battery, without lens covers
  • Water proof, fog resistant, shock resistant
  • Lifetime warranty


Battery Type CR2032 3V Lithium Coin

Brand Primary Arms

Click Value 0.1 Mil

Exit Pupil Diameter Low 16.20 mm / High: 2.70 mm

Eye Relief Low 3.90 in / High: 3.50 in

Field View 100 Low: 36.70 ft / High: 6.10 ft

Focal Plane First Focal Plane

Illuminated Illuminated

Maximum Magnification 18

Minimum Magnification 3

Night Vision Compatible Non-Compatible

Objective Diameter 50mm

Reticle ACSS HUD DMR 5.56 NATO

Total Elevation Adjustment 27.6 MIL

Total Windage Adjustment 27.6 MIL

Tube Diameter 30mm 

Turret Features Exposed Turrets, Tactical / Target Profile, Finger Adjustable, Locking, Zero Reset

Type Variable Magnification

Weight 25.4 Oz

More Information
Manufacturer Primary Arms