This review covers the Holosun HS503G-ACSS red dot sight, highlighting its ACSS CQB reticle developed with Primary Arms. The optic features a 22mm tube, ADM QD mount, and 50,000-hour battery life with shake-awake technology. It offers 10 brightness settings, including NV modes, and 1/2 MOA adjustments. Tested on a 2A Armament BLR-16 with HPR .223 ammo, it demonstrated effective range out to 600 yards with a 3x magnifier, offering good value against higher-end competitors.
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