6 Best Red Dot for KELTEC RDB of 2024
The Top Choices for Precision and Performance

The KELTEC RDB is a highly regarded bullpup rifle that offers a unique combination of versatility, compactness, and reliable performance. Pairing it with the right red dot sight can make a world of difference, enhancing both your shooting accuracy and target acquisition speed. In 2024, several excellent red dots are perfect for the KELTEC RDB, and I’ve spent time testing and reviewing the best options to give you my top picks.
Top 6 Red Dot Sights for the KELTEC RDB of 2024:
- Trijicon MRO
- Holosun HS503CU
- Vortex Strikefire II
- Aimpoint PRO
- Sig Sauer ROMEO5
- Leupold Freedom RDS
Now, let's dive into each of these products in detail, exploring their specifications, best features, pros and cons, and how they mount to the KELTEC RDB.
1. Trijicon MRO

The Trijicon MRO (Miniature Rifle Optic) is one of my top picks for the KELTEC RDB in 2024. It’s rugged, lightweight, and offers a large aperture that improves your field of view. Trijicon is known for its durability, and the MRO is no exception, built to withstand heavy recoil and harsh environments.
Specifications:
- Weight: 4.1 oz
- Battery Life: 5 years on setting 3
- Objective Lens Size: 25mm
- Brightness Settings: 8
Best Features:
Large Objective Lens: The 25mm lens provides a broader field of view compared to other red dots, making it easier to acquire your target.
Durability: Made from 7075 aluminum, the MRO is rugged and waterproof up to 100 feet, ensuring reliability in any weather.
Ambidextrous Brightness Control: The brightness dial is positioned so it can be easily accessed by both right- and left-handed users.
Pros:
- Crystal clear glass
- Long battery life
- Easy to adjust in the field
- Parallax-free
Cons:
- Slightly pricier than competitors
- The brightness knob can be stiff
Personal Experience:
I’ve found the Trijicon MRO to be exceptional for quick target acquisition, even in low-light situations. The sight performs well on the KELTEC RDB, with no noticeable shift in zero even after hundreds of rounds.
Mounting:
The MRO mounts directly to the KELTEC RDB using an absolute or lower 1/3 co-witness mount, depending on your preference.
2. Holosun HS503CU

The Holosun HS503CU is a compact, versatile red dot that offers a unique solar-powered backup system. It’s ideal for shooters who prioritize reliability and value. With a 2 MOA dot and a 65 MOA circle, this sight gives you flexibility in both close-quarters and medium-range shooting.
Specifications:
- Weight: 6.3 oz
- Battery Life: Up to 50,000 hours
- Reticle: 2 MOA dot & 65 MOA circle
- Brightness Settings: 10 daylight, 2 NV
Best Features:
Solar Failsafe: The solar panel automatically powers the sight when there’s enough ambient light, ensuring you're never caught without power.
Multi-Reticle System: The combination of the 2 MOA dot and 65 MOA circle makes it easy to switch between precision shooting and fast target acquisition.
Pros:
- Long battery life with solar backup
- Multiple reticle options
- Durable and waterproof
Cons:
- Slightly heavier than other red dots
- The reticle can get a bit cluttered with both the dot and circle active
Personal Experience:
The solar backup feature came in handy during a long shooting session outdoors. I didn’t have to worry about battery life, and the 65 MOA circle reticle was great for quick shots on moving targets. It held zero after rough handling during testing.
Mounting:
The Holosun HS503CU comes with a low mount and a 1/3 co-witness mount, making it easy to fit onto the KELTEC RDB without any additional hardware.
3. Vortex Strikefire II

The Vortex Strikefire II is a budget-friendly option that doesn’t compromise on quality. Known for offering great value, Vortex is a trusted name in optics, and the Strikefire II delivers excellent performance with its 4 MOA red/green dot and rugged construction.
Specifications:
- Weight: 7.2 oz
- Battery Life: 80,000 hours on the lowest setting
- Reticle: 4 MOA red/green dot
- Brightness Settings: 10 levels
Best Features:
Red/Green Dot Option: The ability to switch between red and green dots is great for adapting to different lighting conditions.
Rugged Construction: The Strikefire II is shockproof and waterproof, ensuring it can handle the recoil of the KELTEC RDB and rough field use.
Pros:
- Budget-friendly
- Red and green dot flexibility
- Durable and reliable
Cons:
- 4 MOA dot may be too large for precision shooting
- Slightly bulkier than some higher-end options
Personal Experience:
I’ve used the Strikefire II on multiple platforms, and it performed exceptionally well on the KELTEC RDB. Its durability and consistent accuracy made it a solid choice, especially considering the affordable price point.
Mounting:
The Strikefire II comes with a cantilever ring mount, which is perfect for the KELTEC RDB. It provides a lower 1/3 co-witness with standard height iron sights.
4. Aimpoint PRO (Patrol Rifle Optic)

The Aimpoint PRO is a tried-and-true red dot sight designed for law enforcement and military use. It’s incredibly durable, reliable, and built to perform under the harshest conditions. For the KELTEC RDB, the PRO offers unparalleled performance in rugged scenarios.
Specifications:
- Weight: 11.6 oz
- Battery Life: 30,000 hours
- Reticle: 2 MOA dot
- Brightness Settings: 6 daylight, 4 NV
Best Features:
- Extreme Durability: The PRO is waterproof up to 150 feet and is built to withstand extreme environments, making it ideal for any shooting condition.
- Long Battery Life: The 30,000-hour battery life ensures that the sight will be ready whenever you need it.
Pros:
- Military-grade durability
- Crisp, clear dot
- Night vision compatible
Cons:
- Heavier than other options
- Higher price point
Personal Experience:
The Aimpoint PRO held up well under rigorous testing. I took it through various weather conditions, and it never lost its zero. While it’s on the heavier side, the sight’s durability and performance make it worth the weight.
Mounting:
The PRO comes with a QRP2 mount, which makes it easy to attach to the KELTEC RDB without needing any additional accessories.
5. Sig Sauer ROMEO5

The Sig Sauer ROMEO5 is a compact, budget-friendly red dot sight that has gained popularity for its excellent performance. It features a 2 MOA red dot with motion-activated illumination, which turns the sight on when it senses motion and powers it down when idle.
Specifications:
- Weight: 5.1 oz
- Battery Life: 40,000 hours
- Reticle: 2 MOA dot
- Brightness Settings: 10
Best Features:
- Motion-Activated Illumination: The MOTAC (Motion Activated Illumination) feature is great for saving battery and ensuring the sight is ready when you are.
- Ultra-Compact: At just 5.1 oz, the ROMEO5 is lightweight and doesn’t add bulk to your KELTEC RDB.
Pros:
- Affordable
- Compact and lightweight
- Excellent battery life
Cons:
- Not as durable as higher-end options
- Lens clarity could be better
Personal Experience:
The ROMEO5 is one of the most convenient sights I’ve used due to its MOTAC feature. It paired perfectly with the KELTEC RDB for fast shooting sessions. However, it may not hold up as well as more premium options if you plan on using it in very harsh conditions.
Mounting:
The ROMEO5 includes a low mount and an absolute co-witness mount, making it easy to attach directly to the KELTEC RDB.
6. Leupold Freedom RDS

Leupold’s Freedom RDS is designed with precision and durability in mind. It’s made in the USA and offers a 1 MOA red dot, which is ideal for precision shooting at longer ranges. The rugged design makes it well-suited for the KELTEC RDB, especially if you’re planning on taking your rifle into challenging environments.
Specifications:
- Weight: 7.2 oz
- Battery Life: 1,000 hours
- Reticle: 1 MOA red dot
- Brightness Settings: 8
Best Features:
- Precision Reticle: The 1 MOA red dot is perfect for precise shots, giving you the edge in accuracy.
- Rugged Design: Built to handle heavy use and tough environments, the Freedom RDS is shockproof, fog proof, and waterproof.
Pros:
- Made in the USA
- Excellent precision with 1 MOA dot
- Lightweight and rugged
Cons:
- Shorter battery life compared to other models
- Limited brightness settings
Personal Experience:
I’ve always trusted Leupold products, and the Freedom RDS didn’t disappoint. Its precision made it perfect for longer-range shots, and it handled the recoil of the KELTEC RDB effortlessly.
Mounting:
The Freedom RDS uses a Picatinny rail mount, which attaches directly to the KELTEC RDB without the need for additional accessories.
Conclusion:
When it comes to finding the best red dot sight for the KELTEC RDB, the right choice depends on your specific needs and preferences. Whether you prioritize rugged durability, budget-friendly options, or precision shooting, the sights on this list offer the best in class for 2024.
If you’re looking for top-tier performance, the Trijicon MRO and Aimpoint PRO are unbeatable. For shooters who want a great blend of value and features, the Holosun HS503CU and Sig Sauer ROMEO5 stand out.
About the Creator
Drake
Love firearm


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