Shortest model sight yet! This sight is smaller than the former N-cell battery sight (511/551) and runs on a single 123 battery. It also has a longer battery life than the N-cell style sights. Smaller,lighter and always fast with three reticle options. With the new single battery configuration, the XPS allows more rail space than ever, leaving more room for rear iron sights or NV mount. Single transverse 123 battery to reduce sight length
Shortened base only requires at most 2 3/4 inch of rail space compared to the 4 inch N battery sights. 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 500-600 hours, 3X battery life of N cell sights. Reticle: 0- 65MOA circle with 1 MOA aiming dot.

Operation:
- Optics: Transmission holography - parallax free
- Magnification: 1x
- Eye Relief: Unlimited
- Length/Width/Height: 3.75"x2.4"x2.4" (95.25X60.96x60.96)
- Weight: 8.8 oz (250 grams)
- 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 Picatinny (MIL-STD-1913) rail
- Return to Zero: Repeatable to 2 MOA after re-mounting
- Night Vision Comatibility: none

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 Options:
- 65 MOA with quadrant ticks and single 1 MOA dot