Preview: Holosun HE507K-GR X2

by
posted on October 12, 2021
** 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 HE507K-GR X2

In addition to the standard red version, the Holosun 507K X2 is now being offered with a green reticle— HE507K-GR X2 —providing a high-contrast aiming point that is equally suited for rapid target acquisition in both daytime and low-light conditions. Holosun continues with desirable features, such as Shake Awake, Multiple Reticle System, Super LED and more are standard here.

Measuring just 1.6"x0.98"x0.95" and weighing only 1 oz., optimized for concealed-carry applications, the compact HE507K-GR X2 boasts an impressive 50,000-hour run time off of one CR1632 battery (on Setting 6), and a side-mounted compartment allows the unit’s battery to be replaced without the need to remove the optic from the gun, which could potentially affect its zero. The water-resistant, reflex-style optic has 12 brightness settings, two of which are night-vision-compatible.

Holosun’s Shake Awake, activated by an on-board motion sensor, instantly powers the unit’s LED, deactivating the programmable Sleep Mode feature in fractions of a second—simply raise the unit, and it is ready for use. A Multi-Reticle System gives users a choice between three reticle options: a 2-m.o.a. dot enclosed within a 32-m.o.a. circle, only the dot or only the circle.

Retail price for the HE507K-GR X2 is set for $376. To learn more, please visit holosun.com.

Latest

US Palm STORM CAT4 01
US Palm STORM CAT4 01

Storm on the Horizon: US Palm's Storm Cat4 Rifles & Pistols

Known primarily for its line of AK-platform accessories, this year, US Palm branched out with a full line of AR-style rifles and pistols, all of which have a unique feature set.

Review: Axil XCor Pro Hearing Protection

These do-it-all earbuds from Axil actually do it all.

Federal's New 6.5 Creedmoor +Peak: The Peak Alloy Case Goes Mainstream

Federal introduced its high-pressure Peak Alloy case design with the 7 mm Backcountry in 2025. Now, the company is incorporating it into high-pressure 6.5 Creedmoor loads with the +Peak design.

I Carry: Springfield Armory Echelon 4.0FC in a JM Custom Kydex Holster

In our latest "I Carry" video, a Springfield Echelon 4.0FC is outfitted with Aimpoint's new COA enclosed-emitter red-dot optic, and to carry this optic-equipped handgun, we've selected a JM Custom Kydex holster.

The Armed Citizen® June 5, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Multi-Caliber MK24 to Replace SCAR-H For SOCOM

U.S. Special Forces will soon be replacing their 7.62-NATO-chambered SCAR-Hs with a new, barrel-swapping MK24 Mid-Range Gas Gun-Assault (MRGGA) gun capable of running either 7.62 NATO or 6.5 Creedmoor.

Interests



Get the best of American Rifleman delivered to your inbox.