A variation of the 553 sight with AA batteries (alkaline, lithium or recgargeable).
An all black unit with dual ARMS throw levers with a 7mm raised base, 33 ft. submersion rating.
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
Optics: Transmission holography - parallax free
Eye Relief: Unlimited
Weight: 1 lb.,14 oz
Temperature: -40 to 150 F
Waterproof: Submersible to 66 ft depth
Sealing: Fogproof internal optics
Color/Finish: Flat Dark Earth (non-reflective black on some small components) or Non reflective black with hard coat finish
Adjustment (per click): 0.5 MOA (1/2" at 100 yds)
Adjustment Range: +/- 40 MOA travel
Mount: Quick release throw levers designed specifically for the Picatinny (MIL-STD-1913) mounting rail: Certain commercial variants of the MIL-STD-1913 rail specifications may not be compatible with the 555.A65/1 mounting assembly. The 555 base consists of (2) ARMS throw levers and is only adaptable to rails that properly accept the ARMS design.
Certain commercial variants of the MIL-STD-1913 rail specification may not be compatible with the SU-231/PEQ (M553) mounting assembly.
The SU-231/PEQ (M553) base consists of (2) ARMS® throw levers and is only adaptable to rails that properly accept the ARMS® design.
Return to Zero: Repeatable to 1 MOA after re-mounting
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
Standard Reticle: 65MOA circle with quadrant ticks with 1 MOA aiming dot
Brightness Adjustment Range: 110,000:1 brightest to lowest
Night Vision Brightness Range: 1000:1 with NV switch engaged
Power Source: 2 x AA batteries
Battery Life: 1000 continuous hours with lithium AA: 600 continuous hours with alkaline AA batteries at nominal setting 12
Brightness Settings: 30 settings with scrolling feature (10 settings for NV use)
Auto Battery Check Indicator: Flashing reticle upon start-up
Auto Shut-down: At 8 hrs- programmable to 4 hr