The exps2 offers true 2 eyes open shooting and provides an unparalleled targeting experience.The increased height of the exps provides iron sight co-witness access in the lower third of the viewing window.It features easily adjustable side buttons; quick-detach lever (fits both 1" weaver and mil-std-1913 rail); 20 brightness settings and a scrolling feature.Features auto shut down at 8 hours.Battery Size: CR123Magnification: 1xObjective: 1.20"/30 mm x 0.85"/23 mmField Of View: 30 yds at 100 ydsEye Relief: UnlimitedDot Size: 1 MOA/68 MOALength: 3.80"/96.5 mmWeight: 11.20 oz/317.5 gReticle: 1 MOA Red Dot/ 68 MOA Red RingAdjustment Size: 0.50 MOAProofs: Water/Weather ResistantOptic Coating: Anti-ReflectionWindage Elevation: Adjustable