10 Best Red Dot Sites 2025 in the United States

The HOLOSUN HS507K X2 is a robust red dot sight designed for subcompact handguns, offering a range of features that cater to both casual and tactical users. Its key strengths include the multi-reticle system, allowing users to switch between a 2 MOA dot and a 32 MOA circle, which is great for varying sight pictures and distances. The battery life is impressive, lasting up to 50,000 hours, and the Shake Awake feature ensures the sight is always ready when needed by activating the LED with slight motion. Additionally, the side-mounted battery tray allows for easy replacement without dismounting the sight, which is a practical feature for continuous use.

The build quality is high, constructed from durable 7075 Aluminum, ensuring it can withstand rough handling and environmental conditions. The red dot sight is also parallax-free, providing accurate target acquisition without the need for centering the reticle in the sight window. The device's lightweight design (0.06 pounds) and compact size (1.6 x 0.98 x 0.95 inches) make it an excellent choice for concealed carry and subcompact handguns.

However, some users might find the need for an adapter plate to fit slides with a four-boss interface to be a slight inconvenience, though it is directly compatible with P365X/XL models. It is also important to note that while the product includes multiple brightness settings, it does not feature night vision compatibility, which could be a limitation for some users. Despite these minor drawbacks, the HOLOSUN HS507K X2's combination of durability, ease of use, and advanced features makes it a top choice for those looking to enhance their handgun's targeting capabilities.

The Holosun HS407K X2 is a solid choice for those looking to equip a subcompact pistol with a reliable red dot sight. Its 6 MOA dot offers a clear and precise aiming point that's neither too small nor too large, making target acquisition quick and easy. The sight shines with a remarkably long battery life—up to 50,000 hours—thanks to its efficient LED and Shake Awake technology, which saves power by turning off the dot when not in use and instantly reactivating it with movement. You also get 12 brightness settings, so it adapts well to different lighting conditions, though it does not support night vision compatibility.

The aluminum housing is durable and compact, weighing just 0.18 kilograms, making it rugged enough for daily carry without adding much bulk. Its design is parallax-free with unlimited eye relief, meaning you don't have to worry about aligning your eye perfectly to see the dot clearly. Mounting is via a Picatinny rail, compatible directly with the P365X/XL or others using an adapter, which is common for handguns.

One minor point is that the dot size might not suit those wanting a very fine or very large reticle, but the 6 MOA is a good middle ground for most users. While the sight offers a good number of brightness options, some might miss night vision modes. This sight balances excellent battery life, durability, and ease of use, making it a dependable optic for subcompact pistols, especially if you want something that’s tough, efficient, and quick to activate.

The Holosun HE507K-GR X2 is a solid choice for those looking to add a green dot sight to a subcompact handgun, especially models like the P365X/XL. It offers a versatile multi-reticle system that combines a 2 MOA dot with a 32 MOA circle, helping shooters quickly acquire targets at various distances. This flexibility allows you to switch between a precise dot or a larger circle to guide your aim, which is handy in different shooting situations. Battery life is impressive, rated up to 50,000 hours, thanks to the Shake Awake feature that turns off the sight when not in use, saving power but instantly waking with a slight movement.

The sight is built from sturdy 7075 aluminum, giving it good durability while staying lightweight at just over 27 grams. Its parallax-free design means the dot stays accurate regardless of your eye position, and it offers unlimited eye relief for comfort. The sight’s size is compact, fitting well on smaller handguns. However, it mounts using a side plate system, which might require an adapter depending on your gun’s slide, so checking compatibility beforehand is important.

Reticle brightness has several settings, including options for daylight and low light, although it doesn't support night vision devices. The Holosun HE507K-GR X2 serves handgun owners seeking a dependable, easy-to-use green dot sight with long battery life and durable construction, though mount compatibility and lack of night vision support may be factors to consider.