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Holosun’s HS510C is a red-dot optic that utilizes an open-frame, 6061-T6 aluminum housing designed to both add durability and maximize sight picture. Utilizing a silicon solar cell in addition to its CR2032 battery, the HS510C has a constant-on battery life of up to five years, and comes with a quick-detach riser for Picatinny rail installation. The 9.3-oz. sight offers three reticle choices (2-m.o.a. dot, 65-m.o.a. hollow circle or both) and is waterproof down to one meter. Additionally, the unit provides 12 brightness settings from which to choose. Price: $300. Contact: Holosun Technologies; (909) 594-2888; holosun.com.
