Offering true 2 eyes open shooting a transversely mounted lithium 123 battery and 7 mm raised base offering iron sight access the new EXPS2 features easy to adjust side buttons and a single quick release throw lever for easy attachment and removal. – Reticle is a 65MOA circle with 1 MOA aiming dot – Single transverse 123 battery to reduce sight length – Shortened base only requires at most 2 3/4 inch of rail space – Battery cap and latch are eliminated and replaced with a simple O-ring tethered cap; better sealing is achieved – Battery compartment is now separated from the base to allow it to hover over the delta ring of the rifle – Average battery life at brightness level 12 is roughly 600 hours – Side buttons with a single quick detach throw lever – Operation: – Optics: Transmission holography – parallax free – Magnification: 1x – Eye Relief: Unlimited – Length/Width/Height: 3.5×2.4×2.8 (91.4X 60.9x71mm) – Weight: 11.2 oz (317grams) – Temperature: -40 to 150 F – Waterproof: Submersible to 10 ft depth – Sealing: Fogproof internal optics – Color/Finish: Non reflective black with hard coat finish – Adjustment (per click): 0.5 MOA (1/2 at 100 yds) – Adjustment Range: +/- 40 MOA travel – Mount: 1 Weaver or (MIL-STD-1913) rail. Adjustable for width variation – Return to Zero: Repeatable to within 2 MOA after re-mounting – Heads-Up-Display Window: – Optical Surfaces: Anti-glare coating – Window Dimensions: 1.20 x 0.85 (30 x 23mm) – Front Window Material: 1/8 solid glass – Rear Window Material: Shatter resistant laminate (3/16 thick) – Field of View (100 yds): 30 yds (28m) at a 4 eye relief – Reticle: 65MOA ring with single 1MOA dot – Electrical: – Brightness Adjustment Range: 146000:1 brightest to lowest – Power Source: (1) 123 lithium battery – Battery Life: 600 continuous hours at nominal setting 12 – Brightness Settings: 20 settings with scrolling feature – Auto Battery Check Indicator: Flashing reticle upon start-up – Auto Shut-down: At 8 hrs- programmable to 4 hrs