** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
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.
![Oconnor Small[67]](/media/bu2le2tp/oconnor-small-67.jpg?anchor=center&mode=crop&width=770&height=430&rnd=134126774953630000&quality=60)
![Oconnor Small[67]](/media/bu2le2tp/oconnor-small-67.jpg?anchor=center&mode=crop&width=150&height=150&rnd=134126774953630000&quality=60)
