Holosun is the industry leader when it comes to balancing quality and affordability. The Holosun 407K adheres to this philosophy, offering an excellent quality sight at a highly affordable price.
The 407K X2 is incredibly popular, not only because of its affordability but because it’s great for a range of different uses. From pistols to competitive shooting, there’s almost nothing the 407K can’t do.
Key Features and Benefits
The Holosun 407K has many distinct features and benefits that appeal to gun enthusiasts. From its affordability to its durability and battery size, it’s hard to go wrong with this model. Below, we’ll discuss some of the key features and benefits you can expect when you buy a 407K X2.
Green & Red Dot Size and Clarity
Since the HS407K X2 is available in both green and red dot versions, we thought it would be wise to compare the two.
Both green and red reticles have certain advantages. One thing that’s worth noting is that green reticles are generally brighter than red ones. This often leads to lower eye strain when using green reticles.
Some users also claim that green dots are easier to see when they have astigmatism. Red dots tend to have fuzzier edges, making it harder for users to see them.
This, in turn, has an effect on the speed of target acquisition. The green light on the HS407K X2 is specially developed not to blend into environments like green grass and is typically brighter than the red dot, which means that you can acquire targets faster.
Also, because the green reticle is much brighter than the red one, you can usually use the green one at a lower brightness setting than you’d have to use the red one.
That said, both of them offer great visibility in sunlight, and low-light conditions. However, the green light is consistently easier to see.
Battery Life and Solar Failsafe
The Holosun 407K has excellent power and battery efficiency, with an average lifespan of 50,000 hours on this kind of dot reticle.
Key Statistics:
- Battery type: CR1632 lithium battery
- Battery life: Up to 50,000 hours on setting 6
- Solar panel efficiency: Highly efficient in various lighting conditions
- Auto-brightness: Automatically adjusts reticle brightness for optimal power consumption
Thanks to a design that features a super LED, the 407K runs for up to 50,000 hours on setting 6. Assuming you’re using the red-dot version, this is a vast improvement over many competitors.
Even under high-pressure conditions, the 407K can often run for much longer than expected.
It also has a built-in Solar Failsafe. This technology allows the device to harness ambient light and generate power. Under daylight conditions, this can ensure that the 407K X2 remains operational even if you’ve depleted the battery.
Thanks to an auto-brightness feature, the reticle can also adjust its brightness based on the available light, further optimizing the sight’s power consumption efficiency.
The Solar Failsafe has proven highly efficient, even under low-light conditions, though it won’t help you in full darkness.
It also includes low-power features to make the battery last as long as possible. These include Shake Awake technology that automatically deactivates the LED when you’re not using the sight.
Thanks to motion sensor activation, however, the LED reactivates as soon as you move the sight, meaning it’s always ready when you need it.
It’s worth noting that the solar panel on this sight comes with a limited lifetime warranty, so you can rest assured that it will continue to work well for the first few year’s of the sight’s lifespan.
Construction and Durability
The Holosun 407K X2 is designed to provide exceptional durability and reliability. This is partially due to the 7075 aluminum housing. This high-strength alloy is resistant to impact, corrosion, and a range of other environmental factors. As a result, the 407K X2 is fairly resilient, and can handle a range of different potentially damaging conditions.
The sight is also rated IP67, which means it’s waterproof to a depth of just over three feet for up to 30 minutes. It’s also entirely resistant to dust ingress. These factors make it ideal for challenging weather conditions.
A range of different shock tests have also been performed on the 407K, ensuring that it can withstand the recoil of a range of weapon types. It’s also resilient against accidental drops and other types of impact.
Mount Compatibility
The Holosun 407K X2 is a highly versatile piece of equipment and is compatible with an array of different firearms and sight rail systems.
It is generally recommended for use with standard Picatinny rails, which are commonly found on pistols, rifles, and shotguns. Of course, the size is a limiting factor and this particular sight is more commonly used for handguns than anything else.
That said, the sight’s adpatability means it may also be compatible with other rail systems, thoughyou may need to use the appropriate adapters or an alternative mounting solution.
No matter how you do it, the 407K X2 is quick and easy to mount. However, you can simplify the process even further through the purchase of a quick-detach mount (sold separately). This tool will allow you to quickly and easily install and remove the sight from the firearm.
Without the quick-detach mount, the mounting procedure is simple, requiring nothing more than basic tools.
Firearm Fit
You can use the Holosun 407K X2 on an array of different firearms, including the following:
- Pistols: Compact and subcompact pistols, like those used for concealed carry or home defense, work well with the 407K.
- Rifles: While it’s less common, certain rifles are also compatible with this sight. This is especially true of shorter-barreled rifles and those with specialized applications.
- Other Firearms: Because the 407K is lightweight, compact, and fairly versatile, it’s suitable for a range of shotguns and other long guns with Picatinny rail mounting options.
