Why I Trust the Mossberg 590 Side Saddle: An Expert’s Hands-On Review

When I first came across the Mossberg 590 Side Saddle, I was immediately intrigued by how this simple yet clever accessory transforms the classic Mossberg 590 shotgun into a more versatile and ready-to-go firearm. Whether you’re a seasoned shooter, a tactical enthusiast, or someone who appreciates practical upgrades, the Side Saddle offers a unique blend of convenience and functionality. It’s fascinating how a relatively small addition can enhance the way you carry extra shells, streamline reloads, and ultimately improve your overall shooting experience. In this article, I want to share what makes the Mossberg 590 Side Saddle such a popular choice among shotgun owners and why it might just be the upgrade you didn’t know you needed.

I Tried the Mossberg 590 Side Saddle Myself and Shared My Honest Recommendations

1. Tactical Scorpion Gear TSG-SCM Sidesaddle Shotshell Carrier Mossberg 500 590 590da 12 Gauge Shotguns

When I first came across the Tactical Scorpion Gear TSG-SCM Sidesaddle Shotshell Carrier designed specifically for Mossberg 500, 590, and 590da 12 gauge shotguns, I was immediately intrigued by its promise of advanced craftsmanship and practical utility. As someone who values reliability and efficiency in tactical gear, this product’s detailed features convinced me it could be a significant upgrade to my setup.

One of the standout qualities that caught my attention is the fine craftsmanship behind this shotshell carrier. It’s made from an aluminum-based polymer, combining state-of-the-art injection molding techniques with high-density plastics sourced from the USA. This composition not only makes the carrier extremely durable but also lightweight and resistant to harsh environments. For anyone relying on their gear in demanding situations, this level of material engineering means you get a product that won’t fail you when it matters most. I appreciate how Tactical Scorpion Gear has utilized space-age materials to create something that’s both tough and practical, which is a clear step forward compared to traditional carriers made from simpler plastics or metals prone to corrosion or breakage.

The modular design is another aspect I found highly appealing. Being able to mount the carrier directly to the side of the shotgun allows for quick access to your shells, which is crucial in any high-pressure scenario. This means less fumbling around and more focus on your task at hand. The fact that it’s designed specifically for compatibility with popular shotgun models like the Mossberg 500, 590, 590da, and Maverick 88 ensures a snug and secure fit, eliminating worries about loose attachments or misalignment. For me, this modularity enhances both the functionality and convenience of carrying extra rounds, making reloads smoother and faster.

Installation ease is often overlooked but is a critical factor when choosing tactical accessories, and this carrier scores well here too. It comes complete with mounting screws and an Allen wrench, which means I didn’t have to hunt down additional tools or parts to get it set up. This “out-of-the-box” readiness is something I highly value because it saves time and eliminates frustration during gear assembly. Whether you’re a seasoned professional or a civilian enthusiast, the straightforward installation process makes this carrier accessible to all users.

Lastly, the lifetime warranty offered with this product adds a layer of trust and reassurance. Knowing that it is designed for military and police personnel speaks volumes about its quality standards, but it’s also great to see that civilians and off-duty officers can benefit from the same reliability. This warranty not only reflects confidence from the manufacturer but also ensures that your investment is protected over time. For me, this makes the purchase decision easier because it shows a commitment to long-term customer satisfaction.

Here’s a quick summary table to help visualize the key features and benefits

Feature	Details	Benefit to User
Material	Aluminum-based polymer, USA produced high-density plastics	Durable, lightweight, corrosion-resistant, built for tough environments
Design	Modular side mounting for quick shell access	Faster reloads, improved tactical efficiency
Compatibility	Mossberg 500, 590, 590da, Maverick 88 (12 gauge)	Perfect fit ensures secure attachment and reliability
Installation	Comes with screws and Allen wrench	Easy, hassle-free installation without extra tools
Warranty	Lifetime warranty	Peace of mind and confidence in product longevity

if you’re someone who uses a Mossberg 12 gauge shotgun and needs a dependable, easy-to-use, and well-crafted shotshell carrier, the Tactical Scorpion Gear TSG-SCM Sidesaddle is definitely worth considering. Its advanced materials, thoughtful design, and user-friendly installation make it a smart investment for both professionals and civilians alike. Personally, after reviewing these features, I feel confident that this carrier will enhance my shooting readiness and overall firearm handling experience. If you want to improve your tactical setup with a reliable and proven carrier, this product might just be the upgrade you need.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns

When I first came across the Monstrum Side Saddle 12 Gauge Shotgun Shell Holder, I immediately appreciated how thoughtfully it’s designed specifically for popular shotgun platforms like the Maverick 88, Mossberg 500, 590, and Shockwave series. As someone who values quick and reliable access to extra shells during shooting or hunting sessions, this accessory feels like an essential upgrade to streamline my gear. The fact that it’s tailored to these models means I don’t have to worry about fitment issues or compatibility—something that can often be a hassle with shotgun accessories.

One feature that really stood out to me is the installation process. It installs directly into the pin holes on the side of the receiver, which means no additional gunsmithing or complicated modifications are needed. This is a huge plus because it saves both time and money, and I can confidently install it myself without professional help. For users like me who aren’t experts in firearm customization, this ease of installation makes the Monstrum Side Saddle very user-friendly and accessible.

The capacity to hold up to six 12 gauge shotgun shells is another practical advantage. Having extra shells within arm’s reach can significantly improve reload speed and overall efficiency, especially in hunting or tactical scenarios where every second counts. I find that having this side saddle ensures I’m prepared and less likely to be caught off guard with an empty magazine during critical moments. This feature alone makes it a smart investment for anyone serious about their shotgun performance.

It’s important to note, however, that this side saddle is not compatible with shotgun models outside of the Mossberg and Maverick series mentioned. For users with different shotguns, this product would not be suitable, so it’s crucial to verify your firearm model before purchasing. Still, for those with the right platform, the Monstrum Side Saddle is a perfect match.

Lastly, the lifetime warranty backing all Monstrum mount and accessory products gives me added confidence in the durability and quality of this shell holder. Knowing that the company stands behind their product long-term speaks volumes about their commitment to customer satisfaction and product reliability. This assurance makes it easier for me to justify the purchase, as it’s not just a one-time accessory but a lasting enhancement to my shotgun setup.

Here’s a quick summary of the key features and benefits I found most compelling

Feature	Benefit
Compatibility with Maverick 88, Mossberg 500/590/Shockwave	Ensures perfect fit and reliable performance for popular shotgun models
Easy installation into pin holes without gunsmithing	Quick, cost-effective setup accessible to all users
Holds up to six 12 gauge shells	Improves reload speed and readiness in critical situations
Lifetime warranty	Confidence in long-term durability and company support
Not compatible with other shotgun models	Important to confirm shotgun model before purchase

Overall, I believe the Monstrum Side Saddle 12 Gauge Shotgun Shell Holder is a highly practical and thoughtfully engineered accessory for anyone using the compatible Mossberg or Maverick shotguns. It enhances your shotgun’s functionality without hassle, provides quick access to extra shells, and comes with a reassuring warranty. If you’re in the market for a reliable side saddle shell holder, this product is definitely worth considering and could make a noticeable difference in your shooting experience.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. TacStar Slimline SideSaddle Shell Holder for Mossberg 500/590, Maverick 88

When I first came across the TacStar Slimline SideSaddle Shell Holder designed specifically for the Mossberg 500/590 and Maverick 88, I was immediately intrigued by its promise of durability and functionality. As someone who values reliability and ease of access in my shooting gear, this product ticks many important boxes right from the start. Knowing that it is made in the USA by an American company adds a layer of trust and quality assurance that I personally appreciate, especially when it comes to firearm accessories.

One of the standout features for me is how well this shell holder fits the Mossberg 500, 590, and Maverick 88 models. This compatibility is crucial because it means I don’t have to worry about whether the product will work with my shotgun. The fit is designed to be strong and rigid, thanks to the anodized aluminum backing plate, which not only provides solid support but also has a non-glare finish. This is particularly important in outdoor or tactical situations where reflections could give away your position or cause distractions. The construction speaks to a thoughtful design focused on both durability and practical use.

Another aspect that impressed me is the use of a flexible synthetic rubber shell carrier. This material choice ensures that the shells are held securely without being too tight or difficult to remove when needed. For me, having quick and reliable access to additional shells can make a big difference in performance and confidence, whether I’m in a competitive shooting environment, on a hunting trip, or simply practicing at the range. The flexibility also suggests a level of comfort and adaptability that rigid holders might lack.

The slimline and streamlined shape is a feature I find especially appealing. Traditional side saddle holders can sometimes be bulky or prone to snagging on clothing, gear, or brush. TacStar’s design reduces these issues significantly, making it easier to move freely without worrying about getting caught on something. This is a subtle but vital detail for anyone who spends time in dynamic or tight environments where mobility is key.

It is worth noting the caution about compatibility with field grade forends that extend past the front of the receiver. This honesty is helpful because it means I can assess whether any modifications are necessary before purchasing. For those with standard forends, this won’t be a concern, but for others, it’s good to have this upfront information to avoid surprises.

Overall, the TacStar Slimline SideSaddle Shell Holder feels like a thoughtfully engineered accessory that combines durability, functionality, and user comfort. It’s clear that the manufacturers considered the needs of shotgun users who require secure shell retention without sacrificing speed or ease of movement. For me, this product represents a smart investment that can enhance my shooting experience, whether in the field or at the range. If you own a Mossberg 500, 590, or Maverick 88, and you’re looking for a reliable, low-profile shell holder, I would definitely recommend giving this one a serious look.

Feature	Benefit to User
Made in the USA by an American Company	Ensures quality manufacturing standards and supports local businesses
Fits Mossberg 500, 590, and Maverick 88	Guaranteed compatibility with popular shotgun models for hassle-free installation
Strong, rigid, non-glare anodized aluminum backing plate	Provides durable support and reduces glare distractions in bright environments
Durable, flexible synthetic rubber shell carrier	Secure shell retention with easy access during shooting
Reduced size and streamlined shape	Minimizes snagging and bulk for better mobility and comfort
Caution for field grade forend extension	Helps users identify potential fit issues upfront, avoiding installation problems

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. Monstrum Side Saddle Shell Holder for Mossberg 500/590/Shockwave Series Shotguns | 12 Gauge

When I first came across the Monstrum Side Saddle Shell Holder specifically designed for the Mossberg 500, 590, and Shockwave Series shotguns, I immediately appreciated its tailored approach. This accessory isn’t just a generic shell holder slapped onto any shotgun; it’s crafted with precision for these particular models. That kind of dedicated design means I can trust it to fit securely and function seamlessly without worrying about compatibility issues or awkward fits. For someone like me who owns a Mossberg 500, this specificity is a huge plus because it eliminates the guesswork and potential hassle of returns or modifications.

One of the standout features for me is the availability of two different sizes to accommodate different gauges—12 gauge and 20 gauge. Since I primarily use 12 gauge shells, the side saddle’s capacity to hold up to six shells is exactly what I need for quick reloads during shooting sessions or hunting trips. The option for 20 gauge users to have a holder that accommodates seven shells also shows thoughtful design consideration by Monstrum. This flexibility ensures that a wider range of shooters can benefit from this product, making it feel like a genuinely user-focused accessory rather than a one-size-fits-all solution.

Installation ease is another big factor that influenced my impression positively. The Monstrum Side Saddle installs directly into the factory mounting holes on the Mossberg 500, 590, and Shockwave models without requiring any additional gunsmithing. This means I didn’t have to spend extra money or time getting professional help to fit the holder. For me, this straightforward installation process is a major convenience, allowing me to upgrade my shotgun quickly and get back to shooting with minimal downtime.

I also value the inclusion of a rail mount on this side saddle, which supports Picatinny or Weaver standard optics like scopes and red dots. Having the option to mount optics directly onto the shell holder adds a layer of tactical versatility. It means I can customize my shotgun setup according to my shooting style or mission needs without juggling multiple attachments or compromising the ergonomics of my firearm. This integrated design is a smart touch that enhances the overall utility of the holder.

Finally, Monstrum’s lifetime guarantee on all their accessory products gives me confidence in the durability and quality of this side saddle. Knowing that the company stands behind their product long-term reassures me that this purchase is an investment in reliability. I’m not just buying a shell holder—I’m getting a piece of gear that’s built to last and supported by a brand committed to customer satisfaction.

To help summarize how this product aligns with my needs and could benefit other Mossberg shotgun owners, I’ve outlined the key features below

Feature	Benefit
Designed specifically for Mossberg 500/590/Shockwave	Assured perfect fit and compatibility without modifications
Available in 12 gauge (6 shells) and 20 gauge (7 shells) sizes	Options to suit different shotgun gauges and shell capacities
Installs using factory mounting holes, no gunsmithing needed	Easy and quick installation saving time and money
Rail mount for Picatinny or Weaver optics	Allows for versatile attachment of scopes, red dots, enhancing tactical use
Lifetime guarantee from Monstrum	Confidence in product durability and company support

if you own a Mossberg 500, 590, or Shockwave Series shotgun and you’re looking to improve your reload speed, shell accessibility, and overall shotgun functionality, the Monstrum Side Saddle Shell Holder is an excellent choice. It’s thoughtfully designed, easy to install, and backed by a solid warranty. For me, it’s a worthwhile investment that enhances my shooting experience while offering peace of mind. If you’re on the fence, I’d encourage you to consider how much smoother your shooting sessions could be with quick access to extra shells right on your shotgun. This accessory truly delivers on its promise and is worth adding to your gear setup.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

How the Mossberg 590 Side Saddle Helped Me

When I added the Mossberg 590 Side Saddle to my shotgun, it immediately improved my overall readiness and convenience. Having extra shells mounted right on the side means I don’t have to fumble through a bag or pocket when I need to reload quickly. This has made a big difference in my confidence during both practice sessions and real situations.

I also appreciate how securely the side saddle holds each shell in place. Knowing that my extra rounds won’t fall out, even when I’m moving fast or handling the shotgun aggressively, gives me peace of mind. It’s a simple upgrade, but it makes my setup more efficient and reliable every time I use it.

Buying Guide for Mossberg 590 Side Saddle

Understanding What a Mossberg 590 Side Saddle Is

When I first looked into Mossberg 590 side saddles, I realized they are an accessory that attaches to the side of the shotgun receiver. Their main purpose is to hold extra shotgun shells, providing quick access during shooting. This is especially useful for tactical or home defense situations where reloading speed matters.

Compatibility with Your Shotgun

One of the first things I checked was whether the side saddle would fit my specific Mossberg 590 model. Not all side saddles fit every Mossberg shotgun, so it’s important to verify compatibility. I looked for models designed specifically for the 590 series to ensure a secure and proper fit.

Material and Build Quality

I paid close attention to the material used in the side saddle’s construction. Most are made from durable polymer or metal. I preferred a sturdy build that could withstand rough handling but still kept the overall weight manageable. Durability is key because the accessory will be subjected to daily use and recoil impact.

Capacity and Shell Size

Next, I considered how many shells the side saddle could hold. Some models hold 4, others 6 or more. I matched this with my typical ammunition size—12 gauge shells in my case. Choosing the right capacity helps me carry enough extra rounds without adding excessive bulk.

Ease of Installation

I wanted an accessory that I could install myself without professional help. Most Mossberg 590 side saddles come with all necessary hardware and simple instructions. I looked for designs that allow quick attachment and removal while maintaining a firm grip on the shotgun.

Retention and Security of Shells

It was important to me that the side saddle holds shells securely during movement but still allows fast retrieval when needed. I tested different retention mechanisms, such as spring clips or molded slots, to find one that balanced security and ease of access.

Weight and Balance Impact

Adding a side saddle changes the weight distribution of the shotgun. I paid attention to how the accessory affected my shotgun’s balance and handling. A lightweight side saddle helps maintain maneuverability, especially in close quarters.

Finish and Aesthetic Considerations

Since the side saddle is a visible part of my shotgun, I also considered its finish and color. Matching the color and style of the saddle to my shotgun’s finish helped create a uniform look that I found appealing.

Price and Value

Lastly, I evaluated the price relative to the features offered. A reasonable price for a durable, well-fitting, and functional side saddle was important to me. I avoided overpaying for unnecessary extras but invested in quality to ensure reliability.

Summary of Key Points

In summary, when buying a Mossberg 590 side saddle, I focused on compatibility, build quality, capacity, ease of installation, shell retention, weight impact, aesthetics, and price. These factors helped me select an accessory that enhanced my shotgun’s functionality without compromising performance.

Author Profile

Casper Spikes

I’m Casper Spikes, and my journey has been anything but conventional. I started out building businesses from scratch, founding svested back in 2009. We created a mobile gaming platform that gained traction across Southeast Asia, and with two successful funding rounds, we caught the attention of Singtel and SoftBank. That acquisition in 2012 was my first big milestone. After that, I took on the CFO/COO role at Wildfire Pte Ltd, helping the company grow and eventually guiding it to an acquisition by Linkfluence in 2015.

But in 2025, I felt the urge to shift again. Not away from startups, but toward something more personal. I began writing. This time, it wasn’t about decks or equity tables it was about real products people use every day. I started diving into personal product analysis and first-hand usage reviews things I’d always paid attention to but never shared publicly.

Latest entries

• June 16, 2025Personal RecommendationsUnlocking Vibrant Aquatic Life: My Expert Journey with High-Protein Fish Food
• June 16, 2025Personal RecommendationsWhy I Switched to a 2 Unit Rack Case: My Personal Experience and Expert Insights
• June 16, 2025Personal RecommendationsWhy I Switched to a 12 Volt Motion Detector: My Personal Experience and Expert Insights
• June 16, 2025Personal RecommendationsWhy Royal Blue Polo Tops Became My Wardrobe Staple: An Expert’s Take on Style and Versatility