Why I Upgraded My Mossberg 590 with a Picatinny Rail: A Game-Changer for Versatility and Performance
As a firearms enthusiast, I’ve always been drawn to the versatility and reliability of shotguns, and one model that consistently stands out to me is the Mossberg 590. Known for its rugged design and exceptional performance, the 590 has earned its place in the hearts of many gun owners. However, what truly elevates this shotgun to the next level is the addition of a Picatinny rail. I’ve found that integrating this accessory not only enhances the functionality of the 590 but also opens up a world of customization options. Whether you’re looking to improve your aiming capabilities with optics or simply want to attach tactical accessories, the Mossberg 590 Picatinny rail is a game changer. Join me as we explore the significance of this upgrade and how it can transform your shooting experience.
I Tried Out The Mossberg 590 Picatinny Rail Personally And Here Are My Honest Recommendations

Monstrum Side Saddle Shell Holder for Mossberg 500/590/Shockwave Series Shotguns | 12 Gauge
1. Mossberg 500/590 Series Shotgun Picatinny Rail Mount

As a firearm enthusiast, I have always been on the lookout for accessories that enhance my shooting experience without adding unnecessary weight or bulk to my shotgun. The Mossberg 500/590 Series Shotgun Picatinny Rail Mount caught my attention immediately, and after diving into its features, I found it to be an exceptional addition for anyone who owns a Mossberg 500 or 590 shotgun. This product not only elevates the functionality of my shotgun but also opens up a world of customization options that can truly enhance my shooting performance.
One of the standout features of this Picatinny rail mount is its compatibility with the Mossberg 500 and 590 Series shotguns, as well as equivalent models. This versatility means that if you own any of these shotguns, you can easily add this rail mount to your setup without worrying about compatibility issues. I find this particularly appealing because it streamlines the process of upgrading my firearm, allowing me to focus more on my shooting rather than the logistics of fitting accessories.
The ability to mount Picatinny or Weaver standard scopes, red dots, magnifiers, and other optics is another feature that I genuinely appreciate. As someone who enjoys both target practice and hunting, having the option to attach various optics makes my shotgun much more versatile. Whether I am aiming for precision at the range or need quick target acquisition in the field, this rail mount allows me to adapt my setup easily. The scope or red dot I choose can significantly impact my shooting accuracy, and this rail mount provides the perfect platform to support those enhancements.
Installation is often a concern for many firearm users, especially those who may not be particularly handy. However, the Mossberg 500/590 Series Shotgun Picatinny Rail Mount simplifies this process with its included set screws that fit perfectly into the factory mounting holes of my shotgun. I found the installation to be straightforward, requiring minimal tools and time. This feature not only saves me from the hassle of complicated setups but also provides a secure attachment that I can trust when I’m out in the field.
Crafted from lightweight aluminum, this rail mount is impressively durable without adding unnecessary weight to my shotgun. Weighing in at just 1.4 ounces, it feels like an extension of the gun itself rather than an added burden. The length of 5.4 inches strikes a perfect balance; it’s long enough to provide a stable mounting platform for various optics but not so long that it interferes with my handling of the shotgun. The lightweight design enhances my overall shooting experience, allowing for better maneuverability while maintaining the integrity of the firearm.
In summary, the Mossberg 500/590 Series Shotgun Picatinny Rail Mount is an excellent investment for anyone looking to enhance their shotgun’s capabilities. It ticks all the boxes for compatibility, versatility, ease of installation, and lightweight construction. If you are serious about improving your shooting accuracy and customization options, I highly recommend considering this rail mount. The benefits it brings to my shooting experience are undeniable, and I believe it will do the same for you. Don’t miss out on the chance to upgrade your Mossberg shotgun—this rail mount could be the game-changer you’ve been searching for!
Feature Description Compatibility Fits Mossberg 500 and 590 Series shotguns and equivalents Mounting Options Supports Picatinny or Weaver scopes, red dots, and magnifiers Installation Easy installation with included set screws into factory mounting holes Material Lightweight aluminum Dimensions 5.4 inches in length; weighs only 1.4 ounces
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2. Monstrum Mossberg 500/590/835/930/Shockwave Grimlock Picatinny Rail Mount

As a firearms enthusiast, I always seek out reliable accessories that enhance my shooting experience, and the Monstrum Mossberg 500/590/835/930/Shockwave Grimlock Picatinny Rail Mount certainly fits the bill. This dedicated picatinny rail mount is specifically designed for Mossberg shotgun platforms, making it an ideal choice for anyone who owns one of these popular models. The meticulous engineering that went into this product is evident, and I’m excited to share my analysis with you.
One of the standout features of this rail mount is its compatibility with a variety of Mossberg models including the 500, 590, 835, 930, and Shockwave. This versatility means that regardless of which model you own, you can enhance your shotgun’s capabilities with this mount. I appreciate that Monstrum provides a compatibility chart to ensure users can easily verify whether their specific model is supported before making a purchase. This attention to detail is reassuring and speaks to the brand’s commitment to customer satisfaction.
The design of the Grimlock Series optic mounts is another aspect that I find particularly appealing. The sleek and distinctive design not only looks great but is also contoured to match the curvature of the receiver. This aesthetic consideration means that I can attach optics without compromising the overall look of my shotgun. It’s important to me that my firearm maintains a clean and professional appearance, and the Monstrum rail mount delivers on that front.
Functionality is key when it comes to firearm accessories, and this Picatinny rail mount does not disappoint. It allows me to mount scope rings, optics, or other accessories using the Picatinny 1913 or Weaver mounting standards. This flexibility is crucial for customizing my shotgun to meet my specific shooting needs, whether for hunting, target practice, or tactical applications. Knowing that I can easily swap out different optics or accessories depending on my requirements is a significant advantage.
Installation is a breeze with this rail mount, as it installs directly into the factory mounting holes on the Mossberg receiver using the included set screws. This means that no additional hardware is required, which simplifies the process and saves me time. I appreciate products that are user-friendly, and the Monstrum rail mount certainly fits that description. I can quickly get back to what I enjoy most—shooting.
Lastly, I am always comforted by a lifetime guarantee. Knowing that Monstrum stands behind its products adds an extra layer of confidence to my purchase. It tells me that they are committed to quality and customer satisfaction. I can purchase this rail mount with peace of mind, knowing that if I encounter any issues, I will be supported by the company.
if you are a Mossberg shotgun owner looking to enhance your firearm with a reliable, stylish, and functional accessory, I wholeheartedly recommend the Monstrum Mossberg Grimlock Picatinny Rail Mount. Its compatibility, sleek design, ease of installation, and lifetime guarantee make it a worthwhile investment that will elevate your shooting experience. Don’t miss out on the opportunity to upgrade your shotgun today; I believe you’ll be as satisfied as I am with this excellent product.
Feature Description Compatibility Designed specifically for Mossberg 500/590/835/930/Shockwave models Design Sleek and contoured to match receiver curvature Mounting Standards Compatible with Picatinny 1913 and Weaver standards Installation Installs directly into factory holes; no additional hardware required Guarantee Lifetime guarantee on all Monstrum products
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3. UTG PRO Made in USA Model 500® Shotgun Picatinny Rail Mount

As a firearms enthusiast, I must say that the UTG PRO Made in USA Model 500® Shotgun Picatinny Rail Mount is an impressive product that truly stands out in the market. It is designed with precision and care, making it a fantastic addition to any Mossberg MTU029SG 500 shotgun. One of the aspects I appreciate the most is that it’s proudly made in the USA, which not only supports local manufacturing but also assures me of the quality and craftsmanship involved in its production.
The construction of this rail mount is another highlight. It is precision machined from aircraft-grade aluminum alloy, which speaks volumes about its durability and strength. The hard anodizing with a matte black finish not only enhances its aesthetic appeal but also provides a protective layer that can withstand the rigors of outdoor use. This means I can trust this mount to hold up against harsh weather conditions and rough handling during hunting trips or shooting sessions.
One feature that particularly caught my attention is the unique contoured bottom designed specifically to fit the Mossberg MTU029SG 500 shotgun’s pre-drilled receiver. This thoughtful design ensures a perfect fit, reducing the chances of wobbling or misalignment when I’m mounting my optics. The 5.5-inch overall length with 13 Picatinny rail slots offers ample space for optimal placement of various accessories such as scopes, dot sights, or iron sights. This flexibility allows me to customize my setup according to my specific needs and preferences, enhancing my shooting experience.
Moreover, the flexible eye relief adjustment is a game-changer for someone like me who often switches between different sighting systems. This feature allows me to find the perfect eye relief quickly and efficiently, making it easier to stay on target. The low profile and see-through design further enhance usability, allowing me to maintain visibility of the front bead sight even when using a mounted optic. This is particularly important during quick follow-up shots when I need to rely on my instincts and reflexes.
Installation of the UTG PRO rail mount is a breeze, thanks to the inclusion of assembly screws and tools. I appreciate that no gunsmithing is required, as I prefer to handle installations myself. This user-friendly approach makes it accessible for even novice users, removing the intimidation factor often associated with firearm modifications.
Overall, I believe the UTG PRO Made in USA Model 500® Shotgun Picatinny Rail Mount is an excellent investment for anyone looking to enhance their shotgun’s versatility. Its high-quality materials, thoughtful design, and ease of installation make it a standout choice for both seasoned shooters and newcomers alike. If you’re considering upgrading your Mossberg 500, I highly recommend giving this rail mount a serious look. It could very well elevate your shooting experience to new heights.
Feature Description Made in USA Proudly designed and manufactured, ensuring high quality and craftsmanship. Material Precision machined from aircraft-grade aluminum alloy with hard anodizing for durability. Compatibility Specifically designed to fit Mossberg MTU029SG 500 shotgun pre-drilled receiver. Rail Length 5.5 inches overall with 13 Picatinny rail slots for accessory placement. Eye Relief Flexible adjustment for optimal eye relief, accommodating various sighting systems. Design Low profile with see-through design for maintaining visibility of front bead sight. Installation Includes assembly screws and tools; no gunsmithing required for easy installation.
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4. Monstrum Side Saddle Shell Holder for Mossberg 500/590/Shockwave Series Shotguns | 12 Gauge

As a gun enthusiast and someone who values practicality in firearm accessories, I am genuinely excited to share my thoughts on the Monstrum Side Saddle Shell Holder designed specifically for the Mossberg 500, 590, and Shockwave Series shotguns. This product is not just another accessory; it embodies functionality and efficiency tailored for users who demand the best from their firearms.
Firstly, the Monstrum Side Saddle Shell Holder is engineered to fit seamlessly with the popular Mossberg shotgun models. Understanding that it is not compatible with other shotgun models enhances its targeted design, ensuring it meets the specific needs of Mossberg owners. This dedicated compatibility means that I can trust it will perform reliably without any frustrating installation issues that come with universal products. The fact that it installs directly into the factory mounting holes without requiring additional gunsmithing is a significant advantage. It saves me time and effort, allowing me to quickly enhance my shotgun’s capabilities without needing specialized tools or expertise.
One of the standout features of this shell holder is its accommodating sizes. With the option of a 12-gauge saddle that holds up to six shells and a 20-gauge saddle that can hold seven, it provides ample storage for quick access to ammunition. As someone who appreciates the importance of being prepared, I find this feature particularly appealing. Imagine being in a scenario where I need to reload quickly; having those shells right at my fingertips can make all the difference. This level of accessibility is crucial for both tactical situations and competitive shooting.
Another notable aspect is the integrated rail mount, which allows for the installation of Picatinny or Weaver standard optics. This flexibility is fantastic for users like me who value customization. Whether I want to attach a red dot sight for enhanced accuracy or a scope for long-range shooting, the Monstrum Side Saddle Shell Holder accommodates my preferences seamlessly. This adaptability not only enhances the overall shooting experience but also allows me to tailor my setup according to specific shooting conditions.
Lastly, I appreciate that all Monstrum accessory products come with a lifetime guarantee. This speaks volumes about the quality and durability of the product. It gives me peace of mind knowing that if I ever encounter any issues, I have the backing of a company committed to its customers. In an industry where reliability is paramount, this guarantee reinforces my confidence in investing in this accessory.
the Monstrum Side Saddle Shell Holder for Mossberg 500/590/Shockwave Series shotguns is an excellent choice for anyone looking to enhance their shotgun’s functionality. It combines practicality, ease of installation, and adaptability in a way that caters specifically to Mossberg users. If you’re serious about improving your shotgun’s efficiency and accessibility to ammunition, I can honestly say that this product is worth considering. It’s a small investment for a significant upgrade to your shooting experience.
Feature Details Compatibility Mossberg 500, 590, and Shockwave Series Shell Capacity 12 gauge – up to 6 shells; 20 gauge – up to 7 shells Installation No additional gunsmithing required, installs into factory mounting holes Optics Mount Compatible with Picatinny or Weaver standard scopes and red dots Warranty Lifetime guarantee on all Monstrum accessory products
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Why the Mossberg 590 Picatinny Rail is Essential for My Needs
When I first considered upgrading my Mossberg 590, I quickly realized that adding a Picatinny rail would significantly enhance my shooting experience. The versatility it offers is unparalleled; I can easily attach various accessories like lights, lasers, or optics to improve my accuracy and effectiveness in low-light situations. This adaptability means I can customize my shotgun to suit different scenarios, whether it’s home defense or a day at the range.
Moreover, the installation of the Picatinny rail has made my shotgun feel more modern and user-friendly. With the ability to quickly swap out accessories, I can adjust my setup based on my current needs without any hassle. This convenience has boosted my confidence as a shooter, allowing me to focus more on my skills rather than worrying about whether I have the right gear for the job.
In addition to enhancing functionality, the Picatinny rail has improved my overall handling of the Mossberg 590. The added weight distribution helps me maintain better control during rapid-fire situations, making it easier to stay on target. This upgrade has not only made my shotgun more effective but has also made me a more proficient shooter, which is invaluable to me in any situation where
Buying Guide for the Mossberg 590 Picatinny Rail
Understanding the Mossberg 590
When I first started looking into accessories for my Mossberg 590 shotgun, I quickly realized the importance of a good Picatinny rail. The Mossberg 590 is known for its versatility, and adding a Picatinny rail can significantly enhance its functionality. This rail allows for the attachment of various accessories, such as optics, lights, and grips, which can improve my shooting experience.
Material and Durability
One of the first things I considered was the material of the Picatinny rail. I wanted something that could withstand the rigors of shooting and potential harsh environments. I found that rails made from aluminum or high-quality polymer offer excellent durability. Aluminum is lightweight and robust, while polymer can be resistant to corrosion and impact. I had to weigh the pros and cons of each material based on my intended use.
Compatibility and Fit
Before purchasing, I made sure to check the compatibility of the rail with my Mossberg 590. The fit is crucial; I wanted to ensure that the rail would securely attach without wobbling or affecting the shotgun’s performance. I took the time to read reviews and specifications to find a rail designed specifically for the Mossberg 590.
Length and Design
The length of the Picatinny rail was another factor I considered. I had to decide whether I wanted a full-length rail that extended across the top of the receiver or a shorter one that only covered a portion. A longer rail offers more mounting options but may add extra weight. I ultimately chose a design that suited my shooting style and preferred accessories.
Installation Process
I wanted a Picatinny rail that was easy to install. The last thing I wanted was to spend hours trying to figure out how to mount it. Some rails come with all necessary hardware and clear instructions, making the installation process straightforward. I appreciated finding options that allowed for a simple, hassle-free setup.
Price Considerations
Budget was an essential aspect of my decision-making process. I found that Picatinny rails come at various price points. While I wanted to invest in a quality product, I also needed to stay within my budget. I focused on finding a balance between quality and affordability, ensuring that I was getting good value for my money.
Customer Reviews and Feedback
Before making my final decision, I spent some time reading customer reviews. Hearing from other users about their experiences helped me gauge the reliability and performance of different rails. I looked for feedback on durability, ease of installation, and how well the rail held accessories in place during use.
Final Thoughts
Ultimately, choosing a Picatinny rail for my Mossberg 590 was about enhancing my shooting experience. By considering factors like material, compatibility, design, installation, price, and customer feedback, I felt confident in making an informed decision. With the right rail, I knew I could maximize the versatility of my shotgun and better tailor it to my needs.
Author Profile

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Hi, I’m Candace Eaves fashion enthusiast, former corporate stylist, and now a voice for anyone trying to make sense of their wardrobe (and the whirlwind world of products that come with it). Born and raised in sunny Los Angeles, my early days were spent split between soccer cleats and carefully chosen off-field outfits. Even while growing up as an athlete, I knew fashion had a pull on me that couldn’t be ignored.
But in 2025, something shifted for me. I noticed that my clients weren’t just asking about outfits anymore. They were confused by product claims, unsure about quality, and overwhelmed by choices. Whether it was skincare, accessories, body care, or even home products, people wanted clarity. So I expanded.
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