The EOTech 517 Holographic Weapon Sight is one of the finest sighting systems you could choose for your firearm. This sight truly enables you to shoot with both eys open, so that you can be fully aware of your surroundings. This sight features a 65 MOA Ring with a 1 MOA Dot reticle, and it runs on AA batteries. The sight mounts to picatinny rails using a knob mounting bolt. This sight comes in a black finish.

Specifications and features:
EoTech model 517.A65 HWS weapon sight
65 MOA ring and 1 MOA dot
0.5 MOA adjustment per click
30 yards field of view at 100 yards at 4" eye relief
20 brightness settings
110,000:1 brightness to lowest brightness adjustment range
1/8" solid glass front window
Shatter resistant 3/16" thick laminate rear window
1.20"x0.85" heads-up-display window
Anti-glare lens coating
+/-40 MOA travel adjustment range
Repeatable to 1 MOA return to zero after mounting
Raised 7mm base
Parallax-free
Unlimited eye relief
Left-side operation buttons, designed to fit magnifiers
Fits standard M-4 or M-16 handguards
1" Picatinny rail mount
Waterproof, submersible to 33'
Fogproof
Automatic battery check indicator
Automatic shut-down at 8 hours, programmable to 4 hours
Uses AA batteries, lithium or alkaline
-40 deg. F to 150 deg. F operating temperature with lithium batteries
-20 deg. F to 140 deg. F operating temperature with alkaline batteries
1,000 continuous battery life with lithium on normal setting
600 hours battery life alkaline
Non-reflective black with hard-coat finish
5.70"Lx2.1"Wx2.8"T