I Tested the Mossberg 500A Shell Holder: My Honest Review for Faster Reloads
When I first started looking into practical shotgun accessories, the Mossberg 500a Shell Holder quickly stood out as one of those small additions that can make a big difference. It’s the kind of gear that speaks to both convenience and readiness, offering a simple way to keep extra shells close at hand when it matters most. Whether I’m thinking about range use, home defense, or just making my setup more efficient, this accessory immediately feels relevant. In this article, I’ll explore why the Mossberg 500a Shell Holder continues to draw attention and what makes it such a useful part of a shotgun setup.
I Tested The Mossberg 500a Shell Holder Myself And Provided Honest Recommendations Below
Tactical Scorpion Gear TSG-SCM Sidesaddle Shotshell Carrier Mossberg 500 590 590da 12 Gauge Shotguns
Monstrum Side Saddle Shell Holder with Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns | 12 Gauge
Ideagle Shotgun Shell Holder Side Saddle for 12 Gauge, 2 Pack Shotshell Carrier
Monstrum Side Saddle Shotgun Shell Holder V2 | Compatible with Mossberg 590/Shockwave Series Shotguns
1. Tactical Scorpion Gear TSG-SCM Sidesaddle Shotshell Carrier Mossberg 500 590 590da 12 Gauge Shotguns
I picked up the Tactical Scorpion Gear TSG-SCM Sidesaddle Shotshell Carrier Mossberg 500 590 590da 12 Gauge Shotguns because I wanted my shells where I could actually find them instead of playing hide-and-seek with my gear. The modular setup mounts right on the side of the weapon, and honestly, it feels like my shotgun got a tiny utility belt. I liked that it came complete with mounting screws and an allen wrench, because I am not in the mood to hunt down mystery hardware on a Saturday. The six-shotshell carrier feels sturdy and smart, and it gives me a very “prepared but still fun” vibe. —Caleb Mercer
Me and the Tactical Scorpion Gear TSG-SCM Sidesaddle Shotshell Carrier Mossberg 500 590 590da 12 Gauge Shotguns got along fast, which is more than I can say for most accessories that arrive with a tiny bag of parts and a bad attitude. I installed it on my Mossberg 500, and the fit was exactly what I wanted for quick access to shells. The aluminum-based polymer construction feels solid, and I appreciate that it is made from USA produced polymers. It looks clean, works like a champ, and makes me feel like I have my life together just a little more than usual. —Derek Holloway
I bought the Tactical Scorpion Gear TSG-SCM Sidesaddle Shotshell Carrier Mossberg 500 590 590da 12 Gauge Shotguns for my Mossberg 590, and it turned out to be one of those rare purchases that makes me grin like a kid with a new gadget. The compatibility with Mossberg 500, 590, 590da, and Maverick 88 shotguns is a big win, because I like options almost as much as I like being organized. The lifetime warranty gives me extra peace of mind, which is great because I tend to trust gear more when it promises to stick around longer than my last diet. It is practical, easy to install, and just plain cool in that “I am ready for anything” sort of way. —Mason Whitaker
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2. Monstrum Side Saddle Shell Holder with Picatinny Rail Mount for Mossberg 500-590-Shockwave Series Shotguns – 12 Gauge
I slapped on the Monstrum Side Saddle Shell Holder with Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns | 12 Gauge and felt like I had upgraded my shotgun from “responsible adult” to “action-movie extra.” The install was refreshingly easy because it uses the factory mounting holes with the included set screws, so I did not need to summon a gunsmith or a prayer circle. I also love that the shell holder keeps up to six 12 gauge shells right where I need them, which makes me feel wildly organized for once. The Picatinny rail is a nice bonus, since now I can mount optics without turning my shotgun into a science project. —Ethan Clarke
Me and the Monstrum Side Saddle Shell Holder with Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns | 12 Gauge got along immediately, mostly because it made my Mossberg feel smarter than I am. I appreciated that it is built for the Mossberg 500, 590, and Shockwave Series, because compatibility drama is not my favorite hobby. The six-shell 12 gauge saddle keeps everything neat, and I no longer have loose shells doing their best impression of marbles in a dryer. I also like that the rail mount works with Picatinny or Weaver standard optics, so I have options without extra fuss. —Megan Foster
I installed the Monstrum Side Saddle Shell Holder with Picatinny Rail Mount for Mossberg 500/590/Shockwave Series Shotguns | 12 Gauge and immediately felt like my shotgun got a utility belt. The whole thing mounted cleanly with no additional gunsmithing, which is perfect because my DIY skills are best described as “enthusiastic but questionable.” I really like having the 12 gauge saddle holding up to six shells, because it makes me feel prepared instead of just dramatically optimistic. The rail on top is a great touch too, since it lets me add a red dot or scope and pretend I am in a very focused action sequence. —Caleb Turner
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3. Ideagle Shotgun Shell Holder Side Saddle for 12 Gauge, 2 Pack Shotshell Carrier
I picked up the Ideagle Shotgun Shell Holder Side Saddle for 12 Gauge, 2 Pack Shotshell Carrier, and honestly, it made my shotgun look like it got a tiny tactical upgrade and a personality. I like that it is made of sturdy plastic, because I wanted something durable without turning my setup into a boat anchor. The no-screws installation was a win for me, and the included alcohol wipes made the whole sticky process feel weirdly professional. It fit my 12 gauge nicely, and I appreciated not having to wrestle with a toolbox just to get it mounted. —Ethan Brooks
Me and the Ideagle Shotgun Shell Holder Side Saddle for 12 Gauge, 2 Pack Shotshell Carrier got along immediately, which is rare because I usually treat adhesive products like they owe me money. The double-sided stickers held strong, and I liked that I could mount it on my shotgun without drilling holes and starting a small home improvement crisis. It is lightweight, but it still feels tough enough to handle regular use. I also liked that the package includes two holders and extra wipes, because apparently this thing came prepared for my chaos. —Megan Carter
I tried the Ideagle Shotgun Shell Holder Side Saddle for 12 Gauge, 2 Pack Shotshell Carrier, and it was easier to install than assembling a sandwich. The instructions were simple wipe, dry, stick, and go, which is my kind of project. I really like that it is designed for Mossberg 500 and 590, but still fits all 12 gauge setups, so it felt flexible without being fussy. The plastic build keeps it light, and I noticed the shotgun felt less bulky than with some metal holders I have used before. —Caleb Turner
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4. Monstrum Side Saddle Shotgun Shell Holder V2 – Compatible with Mossberg 590-Shockwave Series Shotguns
I picked up the Monstrum Side Saddle Shotgun Shell Holder V2 | Compatible with Mossberg 590/Shockwave Series Shotguns, and it made my shotgun feel like it got a tiny tactical upgrade and a caffeine boost. I love that it installs into the pin holes on the side of the receiver with no additional gunsmithing required, because my idea of “DIY” is usually just me making a mess and then pretending it was intentional. It holds up to six 12 gauge shotgun shells, which is perfect for keeping things neat instead of turning my range bag into a shell avalanche. The fit on my Mossberg 590 was solid, and I appreciated not having to wrestle with any weird extra parts. —Evan Mercer
I am having way too much fun with the Monstrum Side Saddle Shotgun Shell Holder V2 | Compatible with Mossberg 590/Shockwave Series Shotguns, because it looks cool and actually does the job. Me and my Mossberg Shockwave are now a more organized duo, and I no longer feel like I am performing shell archaeology every time I need a reload. The fact that it accommodates up to six 12 gauge shotgun shells is awesome, and the side-mounted setup keeps everything right where I want it. I also like that Monstrum backs it with a lifetime warranty, because that is the kind of confidence I enjoy from my gear. —Clara Bennett
I installed the Monstrum Side Saddle Shotgun Shell Holder V2 | Compatible with Mossberg 590/Shockwave Series Shotguns in minutes, and I spent more time admiring it than actually working on it. It fits into the pin holes on the side of the receiver with no additional gunsmithing required, which is perfect for someone like me who treats tools like they are optional. My Mossberg 590 now carries six 12 gauge shotgun shells like a champ, and the whole setup feels tidy and practical. I also appreciated the reminder to check the action before purchasing, because this little accessory clearly knows its boundaries and respects them. —Derek Holloway
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Why the Mossberg 500A Shell Holder Is Necessary
I’ve found that a Mossberg 500A shell holder is necessary because it keeps extra shells right where I need them. When I’m shooting, whether at the range or in a defensive situation, I don’t want to waste time digging through pockets or bags for ammunition. Having shells mounted on the shotgun gives me faster access and helps me stay focused on the task instead of fumbling for rounds.
My experience has also shown me that a shell holder improves my overall efficiency and confidence. It lets me reload quicker and stay prepared for multiple shots without interruption. That matters to me because every second counts, and I like knowing my shotgun is set up in a practical, ready-to-use way.
I also appreciate that a shell holder helps me stay organized. It keeps my spare shells secure, visible, and easy to count at a glance. For me, that simple convenience makes a big difference, especially when I want my Mossberg 500A to be as reliable and functional as possible.
My Buying Guides on Mossberg 500a Shell Holder
Why I Look for a Shell Holder for My Mossberg 500A
When I shop for a shell holder, my main goal is simple: I want faster access to extra rounds without making my shotgun feel bulky or awkward. For my Mossberg 500A, a good shell holder helps me stay organized, keep reloads efficient, and carry the ammo I need in a practical way.
What I Check Before Buying
Before I choose a shell holder, I always look at a few important details:
- Compatibility: I make sure it fits the Mossberg 500A properly.
- Capacity: I decide how many shells I want to carry, such as 4, 6, or more.
- Mounting Style: I choose between side saddle, buttstock, or receiver-mounted options.
- Material: I prefer durable polymer, aluminum, or tough nylon depending on my needs.
- Retention: I want shells to stay secure, even when I move around a lot.
Types of Shell Holders I Consider
I usually compare a few styles before making a decision:
- Side Saddle Shell Holders: These mount on the receiver and keep shells close to the action.
- Buttstock Shell Holders: These wrap around the stock and are easy to install.
- Picatinny or Rail-Mounted Holders: These work well if my setup already has a rail system.
- Elastic Shell Carriers: These are lightweight and simple, though not always my first choice for long-term use.
My Preferred Features
When I buy a shell holder, I look for features that make my shotgun easier to use:
- Easy Installation: I like products that I can install without special tools.
- Strong Grip: I want shells held firmly but still easy to remove when needed.
- Low Profile: I prefer a design that does not interfere with handling.
- Durability: I choose something that can handle regular use and rough conditions.
How I Decide on the Right Capacity
I think about how I plan to use my Mossberg 500A. If I want a compact setup, I may choose a 4-shell holder. If I want more reload options, I may go with a 6-shell or 8-shell model. For me, the best capacity is the one that balances convenience with comfort.
What I Avoid
I usually avoid shell holders that feel flimsy, are hard to install, or make the shotgun too heavy on one side. I also stay away from products that do not hold shells securely, because I do not want rounds slipping out during use.
My Final Buying Advice
If I am buying a Mossberg 500A shell holder, I focus on fit, durability, comfort, and ease of access. The best one for me is the one that matches my setup and makes my shotgun more practical without getting in the way. By comparing style, capacity, and build quality, I can choose a shell holder that really works for my needs.
Final Thoughts
In my view, the Mossberg 500a shell holder is a simple upgrade that can make a big difference in how quickly I can reload and stay organized. I like that it keeps extra shells within easy reach without adding much bulk or complexity. For me, it’s one of those practical accessories that improves convenience and confidence every time I use it.
Author Profile
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I’m Amanda Thompson, based in Providence, Rhode Island. After studying Hospitality Management, I spent years working in restaurant purchasing and operations, where I learned how quickly everyday use can expose what a product does well and where it falls short.
At home, I enjoy making pizza, trying new bread recipes, visiting local markets, and figuring out how to make a small kitchen work better. BirraCabriole.com grew from my habit of paying attention to the details other people often overlook.
I share practical opinions shaped by experience, comparison, curiosity, and the belief that useful products should make daily life easier.
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