The new 516 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 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 EOTech 516 is NOT compatable to use with night vision equipment.  (please see the EOTech 556 model for use with NV) 

• Buttons on left side of sight (not in back) to work specifically with magnifiers
• CR123 Lithium batteries
• Reticle: 65 MOA ring with a single 1 MOA dot
• Raised 7mm base with knurled cross bolt
• Interfaces to 1" Picatinny (MIL-STD-1913) rail