Holosun 507 COMP vs 507C: Which One Should You Choose?

When it comes to pistol red dot sights, Holosun has become a dominant name, offering a wide range of optics that cater to different needs and budgets. Two of the most popular models are the Holosun 507 COMP and the Holosun 507C. Both are excellent choices, but they serve different purposes and come with distinct features. In this comparison, we'll break down the key differences between the Holosun 507 COMP and the 507C, helping you decide which one is the right fit for your shooting style.

Whether you're a competitive shooter looking for a larger window and faster target acquisition, or a concealed carrier who prioritizes compactness and durability, the choice between these two optics can be tough. We'll examine their reticle options, size, battery life, and overall performance to give you a clear picture of what each model offers.

Holosun 507 COMP vs 507C: Quick Overview

The Holosun 507 COMP is designed with competition shooters in mind. It features a larger 2 MOA dot and a 32 MOA circle, providing a wider field of view for faster target acquisition. The 507C, on the other hand, is a more compact optic that offers a 2 MOA dot and a 32 MOA circle as well, but in a smaller package. Both sights utilize Holosun's Multi-Reticle System (MRS), allowing you to switch between a dot, circle, or circle-dot combination.

In terms of build quality, both optics are constructed from durable 7075-T6 aluminum and are waterproof, making them reliable in various conditions. However, the 507 COMP has a larger window (0.88x0.72 inches) compared to the 507C (0.63x0.83 inches), which can be a significant advantage in competitive shooting where quick target acquisition is crucial.

• Both models use a CR2032 battery with a battery life of up to 50,000 hours.
• The 507 COMP has a larger window and a more robust housing, while the 507C is lighter and more compact.

Reticle Options: 507 COMP vs 507C

Both the Holosun 507 COMP and the 507C feature the same Multi-Reticle System, offering the user the choice of a 2 MOA dot, a 32 MOA circle, or a combination of both. This flexibility allows shooters to adapt the reticle to their specific needs. For precision shooting, the 2 MOA dot is ideal, while the 32 MOA circle is excellent for fast target acquisition. The circle-dot combination provides the best of both worlds.

The key difference lies in the size of the reticle. The 507 COMP has a larger 32 MOA circle, which is more prominent and easier to pick up quickly. The 507C's circle is slightly smaller, but still effective. If you're a competition shooter who needs to acquire targets rapidly, the larger circle on the 507 COMP might be more beneficial.

Size and Footprint: 507 COMP vs 507C

The physical dimensions of a red dot sight are crucial, especially if you plan to carry your pistol concealed. The Holosun 507C is a compact optic that measures 1.78 inches in length, 1.26 inches in width, and 1.25 inches in height. It weighs just 1.5 ounces, making it an excellent choice for everyday carry. The 507 COMP, on the other hand, is larger and heavier, measuring 2.03 inches in length, 1.47 inches in width, and 1.35 inches in height, with a weight of 2.2 ounces.

The larger size of the 507 COMP provides a bigger viewing window, which is a significant advantage in competition. However, if you're looking for a red dot for concealed carry, the 507C's compact design might be more practical. Additionally, the 507C uses the RMR footprint, which is compatible with many slides and mounting plates, while the 507 COMP uses a different footprint (Shield RMSc), so you'll need to ensure your slide is cut for that pattern.

Battery Life and Features

Both the 507 COMP and the 507C are powered by a single CR2032 battery, which is housed in a side-mounted tray. This design allows for easy battery replacement without removing the optic from your firearm. The battery life is impressive, with both models offering up to 50,000 hours of use on the dot-only setting. On the circle-dot setting, battery life is reduced to about 10,000 hours, but that's still plenty for most users.

Both optics also feature Solar Failsafe technology, which uses a solar panel on the top of the optic to power the reticle in bright conditions. This ensures that your dot remains visible even if the battery dies. Additionally, both models have Shake Awake technology, which automatically turns the optic on when it detects motion and turns it off after a period of inactivity, conserving battery life.

Price Comparison: 507 COMP vs 507C

Price is often a deciding factor when choosing between two similar products. The Holosun 507C is typically priced slightly lower than the 507 COMP, making it a more budget-friendly option. However, the 507 COMP's larger window and competition-oriented features justify its higher price point for those who need them. If you're on a tight budget but still want a reliable red dot, the 507C is an excellent choice. If you're a competitive shooter who can afford the extra cost, the 507 COMP is worth the investment.

When considering the price, it's also important to factor in the cost of mounting. The 507C uses the RMR footprint, which is widely supported and often comes with mounting plates. The 507 COMP uses the RMSc footprint, which may require a new mounting plate or slide cut, adding to the overall cost.

Ultimately, the choice between the Holosun 507 COMP and the 507C comes down to your specific needs. If you're a competition shooter who values a larger window and faster target acquisition, the 507 COMP is the way to go. If you're looking for a compact, reliable red dot for concealed carry or general use, the 507C offers great performance at a more affordable price. Both are excellent optics that will serve you well. For more gear to complement your setup, check out the SureFire EP4 Sonic Defenders Plus for hearing protection, or the MAGPUL MBUS 3 REAR SIGHT for backup iron sights.