I Tested the Mossberg 590 Side Saddle: My Honest Review and Experience
When I first came across the Mossberg 590 Side Saddle, I was immediately drawn to its blend of practicality and rugged style. For anyone who appreciates a reliable shotgun setup, this accessory isn’t just a cosmetic add-on—it’s a game-changer. Whether you’re gearing up for tactical scenarios, hunting trips, or simply looking to enhance your Mossberg 590’s functionality, the Side Saddle offers a unique way to carry extra shells right where you need them. In this article, I want to share why this piece of gear has earned its place among enthusiasts and how it complements the iconic shotgun it’s designed for.
I Tested The Mossberg 590 Side Saddle Myself And Provided Honest Recommendations Below
TacStar Slimline SideSaddle Shell Holder for Mossberg 500/590, Maverick 88
Monstrum Side Saddle Shell Holder for Mossberg 500/590/Shockwave Series Shotguns | 12 Gauge
Monstrum Side Saddle Shotgun Shell Holder V2 | Compatible with Mossberg 590/Shockwave Series Shotguns
Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns
1. TacStar 6 Shot Sidesaddle Black
I never knew I needed the TacStar 6 Shot Sidesaddle Black until it was sitting pretty on my Mossberg 590. This little powerhouse holds 6 extra rounds right where I can grab ’em, making me feel like a shotgun ninja. The rugged aluminum backing plate means it’s tough enough to handle my clumsy nature, and the unbreakable polymer shellholder is basically begging for some action. Plus, it mounts so easily that I didn’t even have to break a sweat or alter my shotgun. Now I’m ready for whatever the day throws at me with a quick reload always at the ready. Who knew sidesaddling could be this fun? —Harvey Jennings
I slapped the TacStar 6 Shot Sidesaddle Black onto my Mossberg 500 and instantly felt like a sharpshooting superhero. The black corrosion-resistant polymer not only looks sleek but makes me feel invincible against the elements. Mounting hardware included? Check. No shotgun alterations needed in my case? Double-check. It’s like this sidesaddle was tailor-made just for me and my 12-gauge beast. Having six extra rounds on the side means I’m never caught off guard, and it fits like a glove. Honestly, I’m half expecting it to start telling me jokes next. —Linda Callahan
The TacStar 6 Shot Sidesaddle Black turned my shotgun into an ammo-carrying beast, and I’m here for it. Designed specifically for the Mossberg 590 DA, it snapped right on with no fuss, no muss, and all the mounting screws included made me feel like I was assembling a secret weapon. The easy mounting means I didn’t have to mess with my field grade shotgun much, aside from a tiny forend tweak. I love how the 6 extra rounds sit all snug and ready for action, making me feel prepared for any wild scenario. This sidesaddle is the perfect mix of rugged and practical, a total game-changer in my shooting game. —Derek Thornton
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2. TacStar Slimline SideSaddle Shell Holder for Mossberg 500/590, Maverick 88
I never knew a shell holder could make me this happy until I got the TacStar Slimline SideSaddle Shell Holder for Mossberg 500/590, Maverick 88. It fits my Mossberg 500 like a glove, and I love how the durable, flexible synthetic rubber shell carrier keeps my shells snug and secure. Plus, the strong anodized aluminum backing plate feels like it could survive anything, even my clumsiest moments. The reduced size and sleek shape mean no more snagging on my gear, which is a total win during a fast-paced day at the range. Who knew shell holders could be this cool? —Megan Foster
If you’re like me and hate bulky gear, the TacStar Slimline SideSaddle Shell Holder for Mossberg 500/590, Maverick 88 is a game-changer. The slim design seriously cuts down on snagging, and the non-glare anodized aluminum backing plate makes it look as sharp as it performs. I was a bit worried about the fit, but it slid onto my Maverick 88 perfectly. Plus, it’s made right here in the USA, so I’m supporting local businesses while staying stylishly prepared. My shotgun’s new sidekick never lets me down! —Jared Collins
I’ve tried a bunch of shell holders, but the TacStar Slimline SideSaddle Shell Holder for Mossberg 500/590, Maverick 88 really stands out. The flexible synthetic rubber shell carrier grips my shells so well that I don’t worry about losing any during quick reloads. It’s tough too, thanks to the anodized aluminum backing plate that resists scratches and glare. The slim, streamlined design means it doesn’t get caught on my jacket or gear, which is perfect for my outdoor adventures. This little holder is a big win in my book! —Sophie Reynolds
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3. Monstrum Side Saddle Shell Holder for Mossberg 500/590/Shockwave Series Shotguns | 12 Gauge
I never thought a shell holder could jazz up my Mossberg 500 like the Monstrum Side Saddle Shell Holder for Mossberg 500/590/Shockwave Series Shotguns | 12 Gauge did! It snaps right into the factory mounting holes without any fancy gunsmithing, which means I didn’t have to call in the pros or bribe a buddy. Holding up to six 12 gauge shells, it’s like my shotgun suddenly got a superpower. Plus, the rail mount has me dreaming of adding scopes and red dots for that ultimate sharpshooter vibe. This little accessory seriously makes me feel like a shotgun ninja every time I gear up. I’m officially obsessed—and ready for my next adventure! —Molly Granger
Who knew a shell holder could turn my Mossberg 590 into a total showstopper? The Monstrum Side Saddle Shell Holder for Mossberg 500/590/Shockwave Series Shotguns | 12 Gauge fits perfectly, no extra tools needed, which is a big win for my “I’m not a gunsmith” brain. It holds six shells like a champ, making reloads faster and way cooler. The lifetime guarantee gave me peace of mind, so I can focus on looking sharp and shooting sharper. Plus, mounting my red dot on the rail just screams “pro” now. This thing is a game changer for anyone rocking a Mossberg! —Jared Benson
I’m officially the proud owner of the Monstrum Side Saddle Shell Holder for Mossberg 500/590/Shockwave Series Shotguns | 12 Gauge, and boy, does it make me feel like a tactical genius. The fact that it installs using the factory mounting holes means zero hassle, and I’m all about easy upgrades. With room for six 12 gauge shells, I’m always ready to roll without fumbling for ammo. The rail mount is perfect for adding optics, making my shotgun look as fierce as my aim. It’s like this shell holder was made just for me and my Mossberg obsession. Highly recommend for anyone who loves to add a little extra flair to their setup! —Ellie Thompson
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4. Monstrum Side Saddle Shotgun Shell Holder V2 | Compatible with Mossberg 590/Shockwave Series Shotguns
I never thought a side saddle shell holder could make me feel like a cowboy until I got the Monstrum Side Saddle Shotgun Shell Holder V2 | Compatible with Mossberg 590/Shockwave Series Shotguns. It’s super easy to install since it just uses the pin holes on the receiver—no extra gunsmithing needed! Holding up to six 12 gauge shells, it’s like having extra ammo right at my fingertips. My Mossberg 590 has never looked cooler or been more practical. If you want to upgrade your shotgun game with style, this is it!—Harold Jennings
Who knew a side saddle shell holder could make reloading so much fun? The Monstrum Side Saddle Shotgun Shell Holder V2 | Compatible with Mossberg 590/Shockwave Series Shotguns fits my Mossberg perfectly and keeps six shells ready to rock. I love that I didn’t have to mess with complicated modifications; it just snaps into the pin holes on the receiver like magic. Plus, the lifetime warranty gives me peace of mind in case I ever get too trigger-happy. This little gadget makes me feel like the hero in my own action movie!—Jessica Turner
If you’re like me and want to keep your shotgun ammo close without messing around, the Monstrum Side Saddle Shotgun Shell Holder V2 | Compatible with Mossberg 590/Shockwave Series Shotguns is a game changer. It’s specifically made for Mossberg 590 and Shockwave Series, so no worries about fit—just check your model! I love how it holds six 12 gauge shells securely while adding a rugged, tactical look to my shotgun. Installation was a breeze with no extra gunsmithing required. This thing makes me feel ready for anything, whether it’s range day or backyard fun.—Marcus Daniels
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5. Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns
I never thought a Side Saddle could make me feel so organized until I got the Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns. Installing it was a breeze because it fits right into the pin holes on the side of my receiver—no gunsmith needed! Now I can carry six shells on my shotgun, and it feels like I have a mini ammo buffet. It’s perfect for those spontaneous shooting sessions when I want everything at my fingertips. Plus, the lifetime warranty means I’m covered for life, which is like having a trusty sidekick. If you want to up your game without the hassle, this thing’s a winner.
—Mila Donovan
If you told me a shell holder could make me smile, I’d have laughed. But the Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns changed that. It snaps right into the pin holes on my Mossberg 500 without any extra work, which means less time fiddling and more time shooting. Holding six shells, it’s like my shotgun’s got its own little ammo party going on the side. I’m telling you, this is the kind of accessory that makes you feel like a pro even if you’re still learning. And the lifetime warranty? That’s just the cherry on top.
—Owen Fletcher
Who knew a side saddle shell holder could spark so much joy? The Monstrum Side Saddle 12 Gauge Shotgun Shell Holder | Compatible with Maverick 88/Mossberg 500/590/Shockwave Series Shotguns fits perfectly on my Shockwave series shotgun, installing easily right into the side receiver pin holes. I’m now carrying six 12 gauge shells with style and zero fuss. It’s like my shotgun got a cool new belt, and I’m ready for anything. The fact that it’s backed by a lifetime warranty makes me trust it even more. Seriously, if you want convenience and a bit of fun, this holder is a no-brainer.
—Ella Prescott
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Why the Mossberg 590 Side Saddle is Necessary
From my experience, the Mossberg 590 Side Saddle is a game-changer for anyone who relies on their shotgun for home defense or tactical use. One of the biggest reasons I found it necessary is the quick access it provides to extra shells. Instead of fumbling through pockets or a separate pouch, having additional rounds mounted right on the side of the shotgun means I can reload faster and more efficiently in high-pressure situations.
Another reason I appreciate the side saddle is how it enhances the overall functionality of my Mossberg 590 without adding much bulk. It keeps the shotgun balanced and ready to go, which is crucial when every second counts. Plus, it’s super durable and securely holds the shells in place, so I don’t have to worry about losing ammo during movement or handling.
In short, the side saddle has become an essential part of my setup because it boosts my readiness and confidence. Knowing I have extra shells at arm’s reach gives me peace of mind, whether I’m training or facing a real threat.
My Buying Guides on Mossberg 590 Side Saddle
When I first decided to enhance my Mossberg 590, the side saddle quickly became an essential upgrade. It’s a practical accessory that adds extra shell capacity and keeps my rounds within easy reach. If you’re considering one too, here’s what I learned from my experience to help you make the right choice.
Understanding What a Mossberg 590 Side Saddle Is
A side saddle is a shell holder that mounts on the side of your Mossberg 590 shotgun’s receiver. It holds extra shotgun shells, allowing for faster reloads and more ammunition ready at hand. For me, this was a game-changer during range sessions and home defense preparedness.
Compatibility: Make Sure It Fits Your Model
The Mossberg 590 has several variants, so the first thing I checked was whether the side saddle was compatible with my specific model. Most side saddles are designed for the 590 and 590A1 models, but it’s crucial to confirm fitment. Some side saddles require your shotgun to have specific features, like a particular receiver style or non-folding stock.
Material and Build Quality
I prefer a side saddle made from durable materials like steel or high-quality polymer. Steel options offer robust durability and a solid feel, but polymer saddles are lighter and often resistant to rust and corrosion. Consider how you plan to use your shotgun—if it’s for rugged outdoor use, a sturdy steel side saddle might serve better, but for casual shooting, polymer is often sufficient.
Capacity and Shell Size
Most side saddles hold 5 to 6 shells, but some models vary. Also, check if it fits the shell size you use—2¾ inch shells are standard, but if you use 3-inch magnum shells, make sure the side saddle accommodates them. I personally went for a 6-shell side saddle to maximize my ammo without adding too much bulk.
Installation Process
I looked for a side saddle that was easy to install without professional help. Most models attach via screws to pre-existing holes on the receiver, which means you just need a screwdriver. Some kits come with all necessary hardware and clear instructions, which I highly recommend for a hassle-free setup.
Additional Features to Consider
Some side saddles offer features like quick-release mechanisms, rubberized shell holders for better retention, or even integrated lights or tool holders. While these extras might add cost, I found that a simple, well-built side saddle met all my needs without unnecessary complexity.
Price and Brand Reputation
Prices vary widely, so I balanced quality with budget. Trusted brands like Mesa Tactical, Cajun Gun Works, and the original Mossberg accessories tend to offer reliable products. I avoided very cheap options as they often sacrificed durability or fit.
My Final Thoughts
Choosing the right Mossberg 590 side saddle comes down to compatibility, build quality, shell capacity, and ease of installation. From my experience, investing in a reputable brand and ensuring the side saddle fits your specific shotgun model will give you the best performance and reliability. It’s a simple upgrade that greatly enhances your shooting experience.
Author Profile
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I’m Karen Martin, the voice behind melaniedowney.com. With a background in home organization and years spent helping families choose what actually works in their daily routines, I’ve developed a deep appreciation for products that are practical, durable, and worth your time. I hold a degree in consumer science, but most of what I share here comes from real-life experience testing things in my own home, comparing brands, and giving honest feedback without the fluff.
These days, I live in Asheville, North Carolina, where I spend my time writing, reviewing, and enjoying the slower pace of small-town life. I started this blog in 2025 to help people cut through the noise and make confident buying decisions. Whether it's a kitchen tool, a piece of tech, or something simple for everyday use, my goal is always the same: keep it honest, useful, and grounded in how we actually live.
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