Choose a red and green dot holographic reflex sight with adjustable brightness, practical rail compatibility, and configuration-specific features for rifle aiming.
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Flexible aiming options: Switch between red and green reticles, with brightness controls; the 552 configuration provides five brightness levels and 1.0x magnification.
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Rail compatibility: The 551 and 553 configurations fit a 20mm rail, while the 558 includes an integrated 5/8-inch 20mm Weaver rail.
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Adjustable targeting: Use side elevation and leverage adjustments on the 551 and 553; the 552 adds resettable 1/2 M.O.A. windage and elevation with audible clicks.
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Configuration-specific details: The 551 measures 10 × 5 × 6cm and weighs about 220g; the 552 measures 130 × 50 × 65mm and weighs 275g. Batteries are not included: the 551 uses four LR44, the 552 uses two AA, and the 553 and 558 use one CR123A.
