This Elcan SpecterDR scope with a 5.56 CX5395 Illuminated Ballistic reticle is a high performance switchable 1-4x dual-field-of-view combat optic with clip-on night vision capabilities. Switching between sights leaves the US Special Operations and Navy Seals vulnerable, which is why they choose the Elcan SpecterDR. Includes A.R.M.S. Picatinny Mount.