EOTech 557AR223 AA Battery 223 Black [EO557AR223] - $529.95 : Bowers Tactical, featuring products from Accuracy International, ARMS, Bianchi, Blackhawk, Buffer Technologies, Bulldog, CQB Solutions, Don Hume, First Samco, Fobus, GG&G, Gemtech, Global Tacital Supply, Hakko, Insight Technologies, LMT, Magpul Industries, Meprolight, Peltor, Starlight, Steiner, Streamlight, Tango Down LLC, Uncle Mike's, and Wiley X

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.

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