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Eotech Holographic Sight HHS I - .223 Ballistic Reticle - CR123 Batt - Side Buttons - Black

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After 90 days, defective items will still be covered under the manufacturer’s warranty, where applicable.

Please refer to the product listing for warranty details. If you have specific warranty questions, contact us at We may direct you to pursue your warranty claim directly with the manufacturer.

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A combination of the Eotech EXPS3-4 Red Dot + the G33 Magnifier - the HHS 1 allows quick transition from CQB situations to 500m targeting or surveillance.

For the infantryman, target ranges vary in ever-changing battlefield conditions. The HHS provides a solution for engaging threats in CQB situations, then quickly transitioning to a 500m targeting or surveillance situation. Instant transition is achieved through a quick Switch-to Side (STS) mount that offers a simple, quick disconnect feature to remove the magnifier and base.

The EXPS3-4 is configured with a new ballistic matching reticle image for the M4 carbine. The battle tested circle/dot reticle will be offered along with a series of 1 MOA aiming dots that are vertically aligned and calibrated specifically for the ballistic drop of .223 caliber ammunition with 4 aiming dots for target distances of 0-300m, 400m, 500m, and 600m.  The use of a magnifier is strongly recommended.

Product Specs

  • Aiming dots may not be distinguishable from each other without magnifcation.
  • Single transverse 123 battery to reduce sight length
  • Ballistic reticle specific to .223 caliber munitions
  • Compatible with Gen I-III+ Night Vision Systems (tandem operation)
  • Shortened base only requires at most 2 3/4 inch of rail space
  • Battery cap and latch are eliminated and replaced with a simple O-ring, tethered cap; better sealing is achieved
  • Average battery life at brightness level 12 is roughly 600 hours
  • Side buttons, NV compatible with an adjustable, locking, quick detach lever for easy attachment and removal
  • Optics: Transmission holography - parallax free 
  • Magnification: 1x 
  • Eye Relief: Unlimited 
  • Length/Width/Height: 8.1 x 2.2 x 2.8 in
  • Weight: 23.1 oz (689 grams) 
  • Temperature: -40 to 160 F 
  • Waterproof: Submersible to 33 ft depth 
  • Sealing: Fogproof internal optics 
  • Adjustment (per click): 0.5 MOA (1/2" at 100 yds) 
  • Adjustment Range: +/- 40 MOA travel 
  • Mount: 1" Weaver or (MIL-STD-1913) rail. Adjustable for width variation 
  • Return to Zero: Repeatable to within 2 MOA after re-mounting 
  • Night Vision Compatibility: 10 brightness setting (generation I-III+) 

Heads-Up-Display Window

  • Optical Surfaces: Anti-glare coating 
  • Window Dimensions: 1.20" x 0.85" (30 x 23mm) 
  • Front Window Material: 1/8" solid glass 
  • Rear Window Material: Shatter resistant laminate (3/16" thick) 
  • Field of View (100 yds): 30 yds (28m) at a 4" eye relief 


  • Brightness Adjustment Range: 146,000:1 brightest to lowest 
  • Night Vision Brightness Range: 1280:1 with NV switch engaged 
  • Power Source: (1) 123 lithium battery 
  • Battery Life: 600 continuous hours at nominal setting 12 
  • Brightness Settings: 30 settings with scrolling feature (10 settings for NV use) 
  • Auto Battery Check Indicator: Flashing reticle upon start-up 
  • Auto Shut-down: At 8 hrs- programmable to 4 hrs 

Magnifier specs:

  • Magnifcation Fixed: 3.25X 
  • Eye Relief: 2.2 in 
  • Field of View: 7.3 degrees 
  • Length: 3.9 in 
  • Temperature: -40 degrees to 160 degrees F 
  • Waterproof: 33ft 
  • Sealing: Fogproof Internal Optics 
  • Mount: 34mm ring with integrated dovetail adapter for use with quick release mount 

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