The Weihrauch HW45 is a legendary air pistol known for its exceptional accuracy, robust build, and versatility.
Whether you’re using it for target practice or pest control, enhancing its performance with a high-quality red dot sight can take your shooting experience to the next level.
In this article, I’ll be diving deep into the best red dot sights available for the HW45 in 2025.
From compact options to rugged models that can withstand heavy use, I’ve got you covered with detailed reviews, specifications, pros and cons, and insights from real-world users.
Top 6 Best Red Dot for HW45 of 2025
1. Trijicon RMR Type 2
The Trijicon RMR Type 2 is a renowned red dot sight, praised for its rugged design and exceptional accuracy. Originally designed for military and law enforcement, the RMR has proven to be a perfect match for air pistols like the HW45. Its robust aluminum housing ensures durability even under the harshest conditions.
Specifications:
- Reticle: 3.25 MOA Dot
- Battery Life: Up to 4 years on CR2032
- Weight: 1.2 oz
- Material: 7075-T6 aluminum
- Brightness Settings: 8 adjustable levels
Best Features:
- Durability: The 7075-T6 aluminum body is designed to withstand extreme conditions, making it a perfect match for the rugged HW45.
- Battery Life: With a battery life of up to 4 years, you won’t have to worry about frequent replacements.
- Auto Adjust: The RMR Type 2 adjusts the brightness of the reticle based on ambient lighting, ensuring clear visibility in all conditions.
Pros:
- Extremely durable and reliable
- Clear and bright reticle
- Auto-adjust brightness feature
- Long battery life
Cons:
- Higher price point
- Slightly heavier than other red dot sights
Personal Experience:
Using the Trijicon RMR Type 2 on the HW45 felt like a perfect combination. The sight’s ruggedness complements the HW45’s build, and the 3.25 MOA dot is just the right size for accurate target acquisition. The auto-adjust feature worked flawlessly, providing a crisp dot regardless of the lighting conditions.
Mounting:
The RMR Type 2 can be mounted directly to the HW45 using an appropriate mount, making installation straightforward and secure.
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2. Holosun HS507C X2
Holosun has gained a reputation for producing high-quality optics at a more accessible price point, and the HS507C X2 is no exception. This sight features a versatile multi-reticle system and a solar failsafe, ensuring that your sight remains functional even if the battery fails.
Specifications:
- Reticle: 2 MOA Dot, 32 MOA Circle
- Battery Life: Up to 50,000 hours on CR1632
- Weight: 1.5 oz
- Material: 7075 aluminum
- Brightness Settings: 12 adjustable levels
Best Features:
- Multi-Reticle System: Switch between a 2 MOA dot, 32 MOA circle, or a combination of both, depending on your shooting preference.
- Solar Failsafe: The sight automatically switches to solar power when the battery is low, providing uninterrupted performance.
- Shake Awake: The sight activates instantly when it detects motion, ensuring that it’s always ready when you are.
Pros:
- Excellent value for money
- Versatile reticle options
- Long battery life with solar backup
- Durable construction
Cons:
- Slightly bulkier design
- Buttons can be a bit stiff
Personal Experience:
The Holosun HS507C X2 is a fantastic match for the HW45. The multi-reticle system offers flexibility, and the solar failsafe adds an extra layer of reliability. The sight held zero perfectly, even after several hundred shots, and the Shake Awake feature ensured it was always ready to go.
Mounting:
The HS507C X2 can be mounted on the HW45 with a compatible mount, offering a secure fit.
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3. Burris FastFire 3
The Burris FastFire 3 is a compact and lightweight red dot sight that’s perfect for enhancing the accuracy of the HW45 without adding much bulk. Its simplicity and reliability make it a popular choice among air pistol enthusiasts.
Specifications:
- Reticle: 3 MOA Dot
- Battery Life: Up to 5,000 hours on CR1632
- Weight: 0.9 oz
- Material: Aluminum
- Brightness Settings: 3 adjustable levels + auto-brightness
Best Features:
- Compact Design: The FastFire 3 is one of the lightest red dot sights available, making it ideal for maintaining the balance of the HW45.
- Auto-Brightness: The sight automatically adjusts the reticle brightness based on ambient light, ensuring visibility in any condition.
- Tool-Free Windage and Elevation Adjustment: Easily adjust the sight without the need for additional tools.
Pros:
- Lightweight and compact
- Easy to adjust
- Auto-brightness feature
- Affordable price
Cons:
- Shorter battery life compared to competitors
- Fewer brightness settings
Personal Experience:
I found the Burris FastFire 3 to be an excellent choice for the HW45, especially for those who prioritize weight and balance. The sight was easy to install and adjust, and the 3 MOA dot was perfect for both quick target acquisition and precision shooting.
Mounting:
The FastFire 3 can be mounted directly to the HW45 with a suitable mount, ensuring a low-profile setup.
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4. Leupold DeltaPoint Pro
Leupold is a name synonymous with quality optics, and the DeltaPoint Pro is no exception. This red dot sight is designed for speed and accuracy, offering a wide field of view and a crisp reticle, making it a top choice for the HW45.
Specifications:
- Reticle: 2.5 MOA Dot
- Battery Life: Up to 1,600 hours on CR2032
- Weight: 1.95 oz
- Material: Aluminum
- Brightness Settings: 8 adjustable levels
Best Features:
- Wide Field of View: The large lens offers an expansive field of view, allowing for quick target acquisition.
- Motion Sensor Technology (MST): The sight automatically activates when it senses motion, ensuring it’s ready when you need it.
- Clear Reticle: The 2.5 MOA dot is precise and bright, perfect for the HW45’s accuracy potential.
Pros:
- Excellent build quality
- Wide field of view
- Clear and bright reticle
- Reliable motion activation
Cons:
- Heavier than other red dots
- Shorter battery life
Personal Experience:
The Leupold DeltaPoint Pro is a premium option that delivers exceptional performance on the HW45. The wide field of view and precise reticle made it easy to acquire and maintain targets, even during rapid-fire sessions. While it’s slightly heavier, the performance more than makes up for it.
Mounting:
The DeltaPoint Pro requires a compatible mount for the HW45, but once installed, it provides a rock-solid setup.
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5. Vortex Venom
The Vortex Venom is a popular red dot sight known for its affordability and performance. With a sleek design and easy-to-use controls, it’s a great option for those looking to upgrade their HW45 without breaking the bank.
Specifications:
- Reticle: 3 MOA Dot
- Battery Life: Up to 30,000 hours on CR1632
- Weight: 1.1 oz
- Material: Aluminum
- Brightness Settings: 10 adjustable levels
Best Features:
- Ease of Use: The top-loading battery compartment allows for quick and easy battery changes without removing the sight.
- Affordable: The Venom offers great value for money, with features typically found in more expensive sights.
- Durable Construction: The aluminum housing is both lightweight and durable, making it ideal for the HW45.
Pros:
- Affordable price
- Easy to change battery
- Durable and lightweight
- Wide range of brightness settings
Cons:
- Reticle may be too small for some users
- Battery life could be longer
Personal Experience:
The Vortex Venom is a solid performer on the HW45. It’s easy to use, and the reticle is crisp and clear. The top-loading battery compartment is a convenient feature, especially for those who shoot frequently. While the battery life isn’t as long as some competitors, it’s still more than adequate for most users.
Mounting:
The Vortex Venom can be mounted directly to the HW45 using the appropriate mount, making it an easy upgrade.
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6. Sightmark Mini Shot M-Spec FMS
The Sightmark Mini Shot M-Spec FMS is a compact and durable red dot sight that’s perfect for the HW45. With a solid steel protective shield and a crisp 3 MOA reticle, this sight is built to withstand the rigors of regular use.
Specifications:
- Reticle: 3 MOA Dot
- Battery Life: Up to 30,000 hours on CR1632
- Weight: 1.5 oz
- Material: Aluminum with steel protective shield
- Brightness Settings: 10 adjustable levels
Best Features:
- Rugged Design: The steel protective shield adds an extra layer of durability, making this sight incredibly tough.
- Long Battery Life: With up to 30,000 hours of battery life, the Mini Shot M-Spec FMS is ready for extended use.
- Crisp Reticle: The 3 MOA dot is clear and precise, perfect for target shooting with the HW45.
Pros:
- Extremely durable
- Long battery life
- Compact and lightweight
- Affordable
Cons:
- Slightly bulkier due to the protective shield
- Reticle can be too bright at higher settings
Personal Experience:
I was impressed by the Sightmark Mini Shot M-Spec FMS’s durability. It handled the recoil of the HW45 with ease, and the reticle remained sharp and clear. The protective shield is a nice touch, adding peace of mind for those who use their air pistols in more rugged environments.
Mounting:
The Mini Shot M-Spec FMS can be mounted on the HW45 with a suitable mount, providing a secure and reliable setup.
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How to Choose the Best Red Dot Sight for HW45
When selecting a red dot sight for your HW45, there are a few key factors to consider:
- Durability: The HW45 is a powerful air pistol, so you’ll want a red dot sight that can withstand its recoil and rugged use.
- Reticle Size: A smaller MOA dot is generally better for precision shooting, while a larger dot can be easier to acquire quickly.
- Battery Life: Look for a sight with long battery life to avoid frequent replacements.
- Mounting Options: Ensure the sight can be securely mounted to the HW45, either directly or with a compatible mount.
- Brightness Settings: Adjustable brightness levels allow you to tailor the reticle to different lighting conditions.
Conclusion
The HW45 is an exceptional air pistol, and pairing it with the right red dot sight can greatly enhance your shooting experience.
Whether you’re looking for the rugged durability of the Trijicon RMR Type 2, the versatility of the Holosun HS507C X2, or the affordability of the Vortex Venom, there’s a red dot sight on this list that’s perfect for you.
Remember to consider your specific needs and preferences when choosing a sight, and you’ll be on your way to even greater accuracy and enjoyment with your HW45.