The EOTech Holographic Sight Model 551 is a lighter, smaller version of the Model 552, the EOTech Model 551 gives you the same durability and function as the 552, but in a more compact unit. At 4 inches in length, this sight takes up less valuable rail space, leaving more room for a rear iron sight or NV mount.
N Battery
65 MOA circle with 1 MOA aiming dot reticle pattern
Compatible with Gen I-IV Night Vision Systems (tandem operation)
Includes rugged aluminum hood assembly and knobbed tool-less mounting bolt
Interfaces to standard 1" Weaver dovetail / Picatinny rail
