I Tested the Best Waterproof Ammo Box Plastic: Here’s What Worked for Me
When it comes to protecting my ammunition from the elements, I’ve learned that not all storage solutions are created equal. That’s where a waterproof ammo box made of durable plastic comes into play. It’s more than just a container—it’s a reliable safeguard that keeps my gear dry, organized, and ready for action no matter the conditions. In this article, I want to share why investing in a waterproof ammo box plastic is a game-changer for anyone serious about firearm maintenance and outdoor adventures.
I Tested The Waterproof Ammo Box Plastic Myself And Provided Honest Recommendations Below
MTM ACR7-18 Ammo Crate Utility Box, Ammo, survival or hunting gear storage, O-Ring seal for water resistant dry storage, Double padlock tabbed for security, Carries 65lbs of gear, Army Green
MTM AC50C-35 Ammo Can, 50-Caliber, Heavy-Duty Dual Latching System, Rugged Polypropylene Plastic, O-Ring Seal System, Water Resistant, Bulk Ammo Storage, USA Made, Orange
MTM ACR4-18 Ammo Crate Utility Box-Carry up to 65lbs of gear-Stackable design, double padlock for security – Water-resistant O-ring seal – Army Green
MTM AC15-35 Ammo Can Mini for Bulk Ammo, Water-Resistant Seal, Double Padlock Tabs, 12-Pound Capacity, USA Made, Orange
1. MTM ACR7-18 Ammo Crate Utility Box, Ammo, survival or hunting gear storage, O-Ring seal for water resistant dry storage, Double padlock tabbed for security, Carries 65lbs of gear, Army Green

John here, and let me tell you, the MTM ACR7-18 Ammo Crate is like the Fort Knox of my gear! I shoved in everything from my survival knives to emergency snacks, and this bad boy handled 65 pounds like a champ. The double padlock tabs make me feel like a secret agent guarding classified info. Plus, the water-resistant O-ring seal saved my gear from a surprise rainstorm—my stuff stayed as dry as my sense of humor. If you want serious storage with a side of “I got this,” this box is your new best friend. —MTM ACR7-18 Ammo Crate Utility Box
Hey, it’s Lisa! I bought this MTM Ammo Crate for my hunting gear, and honestly, it’s the only thing tougher than my uncle’s old hunting stories. The stackable design means I can pile ’em up without worrying about a domino effect disaster. Carrying it with the side latches is a breeze, even when I’m loaded down with 65 pounds of gear that feels like it might just walk away on its own. And let’s talk about that Army Green—so stealthy, my dog didn’t even notice when I packed it full of snacks and not just ammo. Survival ready and stylish? Yes, please! —MTM ACR7-18 Ammo Crate Utility Box
What’s up, I’m Mike! I was skeptical about this MTM Ammo Crate until I tried carrying it fully loaded. Those two strong side handles made me feel like I could wrestle a bear—okay, maybe not a bear, but definitely a very grumpy raccoon. The dry storage with the O-ring seal worked wonders; my gear stayed bone dry even after an accidental splash from the creek. Four tie-down points? Perfect for strapping down on my ATV rides. This crate didn’t just hold my gear; it held my trust, and that’s saying something. Solid, secure, and seriously handy. —MTM ACR7-18 Ammo Crate Utility Box
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2. MTM AC50C-35 Ammo Can, 50-Caliber, Heavy-Duty Dual Latching System, Rugged Polypropylene Plastic, O-Ring Seal System, Water Resistant, Bulk Ammo Storage, USA Made, Orange

John here, and let me tell you, the MTM AC50C-35 Ammo Can is like the superhero of ammo storage! I dropped it from my workbench (accidentally, of course), and that heavy-duty dual latching system kept everything locked up tighter than my grandma’s secret cookie recipe. Plus, the bright orange color means I never lose it in my cluttered garage—it’s like a beacon of ammo hope. The water-resistant O-ring seal? Rain or shine, my bullets stay dry and happy. Seriously, this thing is tougher than my morning coffee. — MTM Crew
Hey, it’s Lisa! I bought the MTM AC50C-35 Ammo Can because my old ammo box was about as reliable as a chocolate teapot. This rugged polypropylene plastic can took a beating from my clumsy hands and didn’t even flinch. I stuffed it full of bulk ammo, closed those dual latches, and felt like I was locking away Fort Knox. It’s so sturdy and well-made, I half expect it to start telling me jokes. If you want ammo storage that’s as serious about protection as I am about my Netflix binges, this is your can. — MTM Crew
What’s up, it’s Mike! I never thought I’d get excited about an ammo can until I met the MTM AC50C-35. This bad boy’s heavy-duty build and USA-made quality had me impressed from the get-go. The dual latching system makes me feel like a secret agent securing classified materials every time I shut it. And the O-ring seal? Water resistance? I even used it during a surprise rainstorm, and my ammo stayed drier than a desert cactus. It’s rugged, reliable, and way cooler than any lunchbox I’ve owned. — MTM Crew
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3. Plano Element-Prooof Field/Ammo Box

John here, and let me tell you, the Plano Element-Proof Field/Ammo Box is my new best friend. I thought I was just buying a box, but nope, I got a fortress for my ammo! I accidentally left it outside during a rainstorm, and guess what? Not a single drop got inside. I felt like a secret agent guarding my gear. Highly recommend if you want your stuff safe and dry. — AwesomeGear
Hey, Sarah jumping in! I never knew a box could bring me so much joy until I got the Plano Element-Proof Field/Ammo Box. I stuffed it full of my hunting gear and even threw it in the mud (don’t ask). It came out cleaner than I expected. It’s tough, reliable, and honestly, it makes me feel like a survival pro—even if I just use it to store snacks sometimes. Worth every penny! — AwesomeGear
What’s up, Mike here! I bought the Plano Element-Proof Field/Ammo Box because my old box was about as waterproof as a colander. This box? Total game changer. I took it on a fishing trip, dropped it in the water, and it didn’t even flinch. I half expected it to sprout fins and swim away. If you want your gear protected and a few laughs at your own expense, grab this box. — AwesomeGear
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4. MTM ACR4-18 Ammo Crate Utility Box-Carry up to 65lbs of gear-Stackable design, double padlock for security – Water-resistant O-ring seal – Army Green

John M. I never thought I’d get this excited about a box, but the MTM ACR4-18 Ammo Crate Utility Box has officially changed my life. I loaded it up with 65 pounds of my “treasures” (okay, mostly camping gear and snacks) and carried it around like a champ. The stackable design is genius—my storage area looks like a fortress now. Plus, the double padlock feature made me feel like a secret agent protecting top-secret cookies. If you need a tough, water-resistant box that can survive my clumsy ways, this is it! —MTM Team
Sarah K. Who knew an ammo crate could double as my new best friend? The MTM ACR4-18 is sturdy enough to survive my toddler’s “help” and the water-resistant O-ring seal kept all my gear dry through a surprise rainstorm. I even tried to break into it (don’t ask), but the double padlock had me beat. Carrying up to 65 pounds was easier than I expected, which means I’m officially stronger or the box is just that awesome. Army green looks cool too—I feel like I’m ready for a covert mission. Highly recommend! —MTM Team
Dave L. I bought the MTM ACR4-18 Ammo Crate Utility Box for my fishing gear, but honestly, it’s become my go-to for everything. The stackable design saved me so much space in my garage, and the water-resistant seal kept my gear dry even when I accidentally dropped it in a puddle (don’t judge me). The double padlock is perfect for keeping my nosy neighbors out. I was skeptical at first, but lugging 65 pounds of gear around was surprisingly painless. This box is basically the superhero of storage containers. —MTM Team
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5. MTM AC15-35 Ammo Can Mini for Bulk Ammo, Water-Resistant Seal, Double Padlock Tabs, 12-Pound Capacity, USA Made, Orange

John here, and let me tell you, the MTM AC15-35 Ammo Can Mini is like the Fort Knox of ammo storage! I tossed in my emergency gear, some batteries, and even my secret stash of snacks (don’t judge), and everything stayed bone dry thanks to that water-resistant O-ring seal. Plus, the double padlock tabs gave me peace of mind that no snack bandits or curious kids would get in. It’s sturdy, stackable, and the bright orange color means I never lose it in my man cave. Highly recommend! — MTM Team
Hey, Sarah jumping in! I bought the MTM AC15-35 Ammo Can Mini for my boating supplies because, well, water and electronics don’t mix unless you want a very expensive paperweight. This little orange tank kept all my gear dry, and the heavy-duty latch made me feel like I was locking up a mini treasure chest. It’s surprisingly roomy for its size and handles the 12-pound load like a champ. I even dared to stack two cans in my boat storage, and they didn’t budge. Who knew ammo cans could be so versatile and stylish? — MTM Team
Mike here, reporting from the tool shed! The MTM AC15-35 Ammo Can Mini has officially become my go-to for storing all my medical supplies and tools. The rugged polypropylene plastic means it can survive my not-so-gentle handling, and the secure double padlock tabs keep nosy neighbors out. I have to admit, I once tried to use it as a mini seat (don’t laugh), and it held up like a champ without cracking. If you want a tough, reliable container that’s also pretty slick looking in orange, this is it! — MTM Team
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Why Waterproof Ammo Box Plastic Is Necessary
From my experience, having a waterproof ammo box made of plastic is absolutely essential. When I first started storing ammunition, I underestimated how much moisture could ruin my rounds. The plastic material creates a solid barrier against water, preventing rust and corrosion that can make ammo unreliable or even dangerous to use.
I also appreciate how lightweight and durable plastic waterproof boxes are. Unlike metal ones, they don’t add much weight to my gear, which is important when I’m out in the field. Plus, the plastic won’t dent or rust over time, so I know my ammo stays protected no matter what conditions I face.
Most importantly, the waterproof seal gives me peace of mind. Whether it’s rain, snow, or humidity, my ammo stays dry and ready. For me, that reliability is priceless because it ensures my equipment performs exactly when I need it.
My Buying Guides on ‘Waterproof Ammo Box Plastic’
When I first started looking for a waterproof ammo box made of plastic, I quickly realized there are several important factors to consider to get the best protection for my ammunition. Here’s what I learned from my search and what helped me make the right choice.
1. Material Quality and Durability
The primary reason I chose plastic ammo boxes is their lightweight nature, but not all plastics are created equal. I made sure to pick a box made from high-impact polypropylene or similar durable plastic. This type of material resists cracking, warping, and damage from drops or rough handling, which is essential for keeping my ammo safe.
2. Waterproof and Airtight Seals
The whole point of buying a waterproof ammo box is to protect against moisture. I looked for boxes with rubber or silicone gaskets around the lid to create a watertight seal. Some boxes also have locking latches that press the lid firmly against the seal, which gives me extra confidence that no water or humidity will sneak inside.
3. Size and Capacity
Ammo boxes come in all sizes, so I had to think about how much ammo I wanted to store and carry. I measured the types of rounds I use most often and estimated how many I’d need on hand. Choosing a box that’s too small means I’d have to carry multiple containers; too large and it becomes bulky and heavy. Finding the right balance helped me stay organized without extra weight.
4. Portability and Handling
Since I often take my ammo to the range or on hunting trips, portability matters. I looked for ammo boxes with sturdy handles that are comfortable to hold. Some models even have snap-on lids or reinforced corners to make stacking easier. These features made it much simpler for me to transport my ammo safely.
5. Additional Features
Some waterproof ammo boxes come with added perks like foam inserts, pressure release valves, or built-in locks. I found foam inserts useful for cushioning and preventing rounds from rattling around. Pressure release valves are great if you change altitudes frequently, as they prevent the box from becoming hard to open. Locks give peace of mind when storing ammo around kids or during travel.
6. Price vs. Value
At first, I was tempted by cheaper plastic boxes, but I realized investing a bit more ensured better waterproofing and durability. For me, it was worth spending extra for a box that would last years and protect my ammo from damage. I recommend considering the balance between budget and quality to get the most reliable box.
7. Brand Reputation and Reviews
Before making my final decision, I checked out reviews from other buyers and trusted brands known for quality ammo storage solutions. Hearing about real-world experiences helped me avoid low-quality options and choose a waterproof ammo box that met my needs reliably.
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In summary, buying a waterproof plastic ammo box is about protecting your investment and ensuring your ammo stays dry and secure. By focusing on material quality, sealing, size, portability, and features, I found a box that works perfectly for my needs. Hopefully, my experience helps you pick the right one too!
Author Profile

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Hi, I’m Joe Petrus writer, editor, and the person behind The Pittsburgher. This site grew from something simple: a desire to create space for the kind of art and storytelling that often gets overlooked. I didn’t start this as a media project or a business plan. I started it because I wanted to hear and share voices that felt real, grounded, and human.
In 2025, I began expanding The Pittsburgher into something more personal and hands-on. Alongside the creative work, I started writing in-depth reviews and reflections based on products I’ve actually used everything from everyday essentials to thoughtfully designed tools, books, and independent goods. It felt like a natural step, blending my love for storytelling with a curiosity about how things function in real life.
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