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EOTech Holographic Weapon Sights

DISCONTINUED EOT-557.4XFXD EOTech Model 557 Holographic Weapon Sight with 4X Magnifier (fixed base)

Part Number:EOT-557.4XFXD Be the first one to write a review
EOTECH MODEL 557 HOLOGRAPHIC WEAPON SIGHT WITH 4X MAGNIFIER - Complete system includes 557.AR223 Holographic Weapon Sight model with .223 Ballistic reticle, 4X magnifier and fixed non-flip base with quick detach.
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The new 557.AR223 has been developed to optimize the functionality of the HWS. The buttons have been moved from the back to the left side for instant access, allowing a magnifier, night vision, or a back up iron sight to fit closely to the HWS body. This new button position allows the user to operate the HWS function switches easier than ever before. Additionally, a portion of the front base has been raised to allow the sight to fit over standard hand guards found on many M-4 or M-16 style weapons.

The 557.AR223 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. The reticle provides 4 aiming dots for target distances of 0-300m, 400m, 500m, and 600m.

Features:

  • Buttons on left side to work specifically with NV or magnifiers
  • AA Battery model (supports Lithium or Alkaline)
  • Ballistic reticle specific to .223 caliber munitions
  • Compatible with Gen I-IV Night Vision Systems (tandem operation)
  • Raised 7mm base

Operation

  • Optics: Transmission holography - 100% parallax free
  • Magnification: 1x
  • Eye Relief: Unlimited
  • Length/Width/Height: 5.70"x2.1"x2.8" (133x49x71 mm)
  • Weight: TBD
  • Temperature: -40 to 150 F (using AA lithiums); -20 to 140 F (AA Alkaline)
  • Waterproof: Submersible to 33 ft depth
  • Sealing: Fogproof internal optics
  • Color/Finish: Non reflective black with hard coat finish
  • Adjustment (per click): 0.5 MOA (1/2" at 100 yds)
  • Adjustment Range: +/- 40 MOA travel
  • Mount: 1" Picatinny (MIL-STD-1913) rail
  • Return to Zero: Repeatable to 1 MOA after re-mounting

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
  • Standard Reticle: AR223 BDC reticle with additional drop point dots for 400, 500, and 600 meters

Electrical

  • Brightness Adjustment Range: 110,000:1 brightest to lowest
  • Night Vision Brightness Range: 1000:1 with NV switch engaged
  • Function Button Location: Left side near the rear of sight
  • Power Source: 2x 1.5V AA batteries (supports lithium, alkaline, or rechargeable)
  • Battery Life: 1,000 continuous hours (lithium) at nominal setting 12; 600 continuous with AA alkaline
  • 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