Best 50 Caliber Ammo Boxes of 2026

Paul Tilton Avatar
Paul Tilton
Last Updated: Jan 25, 2026

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

The 50 Caliber Ammo Boxes are rugged and durable storage containers designed to keep ammunition safe and organized. Constructed from high-quality materials, these boxes are built to withstand the toughest conditions and provide long-lasting protection for your ammunition. With a capacity to hold up to 50 rounds of ammunition, they are perfect for hunters, shooters, and military personnel. The boxes feature a secure latch system and a rubber gasket seal to ensure a watertight and airtight seal, keeping your ammunition dry and free from moisture or dust. Whether you need to transport or store your ammunition, the 50 Caliber Ammo Boxes are a reliable and essential accessory for any gun enthusiast.

At a Glance: Our Top Picks

Fortress 50 Caliber Metal Ammo Can Cover #TOP 1
Fortress 50 Caliber Metal Ammo Can
ftb score rating icon 9.9
MTM 50 Cal Ammo Can Cover #TOP 2
MTM 50 Cal Ammo Can
ftb score rating icon 9.8
MTM AC4C Ammo Crate Cover #TOP 3
MTM AC4C Ammo Crate
ftb score rating icon 9.6

Top 10 50 Caliber Ammo Boxes

#TOP 1

Fortress 50 Caliber Metal Ammo Can

FORTRESS
50AM
Green
50 Cal
Fortress 50 Caliber Metal Ammo Can Cover
Fortress 50 Caliber Metal Ammo Can, 50 Cal

The Fortress 50 Caliber Metal Ammo Can is a sturdy ammunition storage box that provides air tight storage for your ammunition. It features a rubber seal and an all-steel construction with a solid hinged lid. The can is easy to carry with its handle, making it convenient for transport. The can is perfect for keeping your ammunition safe and protected.

What We Like
Heavy-duty steel construction
Excellent rubber seal
Stackable and stable design
Secure, tight latch mechanism
Well-packaged delivery
#TOP 2

MTM 50 Cal Ammo Can

MTM
AC50C-40
Black
50-Caliber
MTM 50 Cal Ammo Can Cover
MTM AC50C-40 Ammo Can, 50-Caliber, Heavy-Duty Dual Latching System, Rugged Polypropylene Plastic, O-Ring Seal System, Water Resistant, Bulk Ammo Storage, USA Made, Black

The MTM 50 Cal Ammo Can, also known as the MTM Ammo Can, is a rugged and versatile storage solution for your ammunition. Made of durable polypropylene plastic, this ammo can is built to withstand the toughest conditions. With its comfortable handles, it is easy to carry and transport. The heavy-duty, dual latching system provides a super water-resistant seal, ensuring that your ammo stays dry even in wet environments. The double padlock tabs offer added security, while the stacking ridges allow for easy storage and organization. Whether you need to store your ammunition in basements, garages, or storage sheds, the MTM Ammo Can is an excellent choice. Made in the USA, this ammo can is built to last and protect your ammunition.

What We Like
Heavy duty construction
Waterproof rubber gasket
Stackable design
Large storage capacity
Secure locking latches
#TOP 3

MTM AC4C Ammo Crate

MTM
AC4C
Brown
30 caliber
MTM AC4C Ammo Crate Cover
MTM AC4C 4- can Ammo Crate, Convenient size, Stackable, easy carry and transport of 30 caliber ammo, Rugged tactical carrying crate, USA Made, 23.6"L x 11.25"W x 7.5"H, Brown

The MTM Ammo Crate offers a sturdy and dependable solution for storing and transporting your ammunition. Its lightweight design makes it easy to carry, while the stackable feature allows for efficient use of space. You’ll appreciate the water-resistant O-ring seal that keeps moisture and dust at bay, ensuring your ammo remains dry and secure. With the ability to hold four 30 caliber ammo cans, this crate is perfect for those who need to organize multiple types of ammunition efficiently.

What We Like
Sturdy and durable construction
Excellent organization and storage
Stackable and space-saving design
Reasonable price point
Made in USA

MTM Divided Ammo Crate Utility Box

MTM
ACDC30
Dark Earth
ACDC30
MTM Divided Ammo Crate Utility Box Cover
MTM ACDC30, Divided Ammo Crate Utility Box, Water- Resistant, Stackable, Snap Latch, USA Made, Dark Earth

The MTM Ammo Crate Utility Box is the perfect solution for carrying and transporting multi-caliber ammo storage. With its spacious and compartmented interior, including three removable partitions, you can easily organize and access your ammunition. The water-resistant O-Ring seal adds an extra layer of protection, making it suitable for various weather conditions. Its stackable design with tie-down and strap-over points allows for easy storage and transportation. The strong snap latches and four padlock tabs ensure the security of your ammo. Additionally, the heavy-lift handles with a 75-lb carrying capacity make it convenient to transport. Made in the USA, this utility box has inside dimensions of 17.7” x 8.6” x 6.6” and outside dimensions of 21” x 11.2” x 7.5”.

What We Like
Excellent durability and strength
Affordable price point
Versatile storage uses
Water resistant protection
Multiple size options
#TOP 5

Plano Field Ammo Box .30 Caliber

PLA1312P
Black
Small
Plano Field Ammo Box .30 Caliber Cover
Plano Field Ammo Box .30 Caliber, Black, Lockable Ammunition Storage Box with Heavy-Duty Carry Handle, Small Plastic Ammo Crate, Water-Resistant Protection, Holds 6-8 Boxes of Ammo

The Plano Field Ammo Box is a durable and versatile ammunition storage solution. Made from heavy-duty materials, this plastic ammo storage box provides reliable protection for .30 caliber ammo during transport and storage. With a tough, snap-down latch and a padlock tab, it offers maximum security. The water-resistant tongue and groove connection protect the ammo from moisture, dust, and dirt. The stackable design saves space and the heavy-duty handle ensures a comfortable grip for easy transportation to the range or outdoors. Ideal for storing ammo, hunting or shooting gear, small tools, and other accessories, the Plano Field Ammo Box is a must-have for any outdoor enthusiast.

What We Like
Sturdy build quality
Space-saving stackable design
Lightweight and portable
Affordable price
Good storage capacity

MTM 100 Round Ammo Box

MTM
RM-100-24
Clear Blue
3.05-Inch
MTM 100 Round Ammo Box Cover
MTM Case-Gard RM-100-24 Rifle Ammo Box 100 Round 220 Swift 243 308 Win 6.5 Creedmoor 6.8x51, USA Made, Clear Blue

The MTM Ammo Box is designed to hold 100 rounds of rifle ammunition securely. Its scuff-resistant surface ensures durability, making it ideal for outdoor use. The snap-lock latch keeps your ammo safely contained, preventing accidental spills or damage. Stacking feet allow for easy storage and organization, letting you save space in your gear. With a mechanical hinge and load labels, you can easily access and identify your ammunition. Plus, it comes with a 25-year guarantee, offering you peace of mind in your investment.

What We Like
Sturdy and solid construction
Reasonable price
Compact, saves storage space
Secure latch, no spills
Stackable design
#TOP 7

MTM ACR7-18 Ammo Crate Utility Box

MTM
ACR7-18
green
Large
MTM ACR7-18 Ammo Crate Utility Box Cover
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

The MTM ACR7-18 Ammo Crate Utility Box is a large army green box that can carry up to 65 pounds of gear with two strong side handles. It has a stackable design and double padlock tabbed for security along with four tie-down points on the side. The water-resistant O-ring seal keeps your items dry and it is non-submersible. The exterior dimension is 17.2" x 10.7" x 9.2”(H) while the interior dimension is 12.4" x 8.4" x 8.5"(H). The latches mounted on the side make carrying easy. Made in USA.

What We Like
Spacious storage capacity
Durable construction
Water-resistant seal
Stackable design
Dual padlock compatibility
#TOP 8

Sheffield 12628 Field Box

12628
Gray
Standard Single
Sheffield 12628 Field Box Cover
Sheffield 12628 Ammo Storage Box, Stackable .30 Cal Field Boxes, Water and Dust Resistant, Lockable Storage Box with Handle, Secures Hunting Gear, Supplies, and Bullets, Made in USA, Gray, 1-Pack

The Sheffield 12628 Field Box is a tamper-proof locking ammo storage box that is water and dust resistant, making it ideal for storing hunting and fishing gear, electronics, tools, equipment, ammunition, and anything else you need to protect. Its interlocking system allows for superior stackability and reduces tipping, while the compression-fit lid ensures that your belongings stay safe and dry. With its easy-to-carry handle, this modular storage solution can go with you wherever you go.

What We Like
Sturdy lightweight construction
Ample storage capacity
Stackable and lockable design
Good value for money
Multiple color options
#TOP 9

MTM 100 Round Flip-Top Ammo Box

MTM
P-100-9-16T
Clear Green/Black
Large
MTM 100 Round Flip-Top Ammo Box Cover
MTM 100 Round Flip-Top Ammo Box 380/9MM Cal (Clear Green/Black)

The MTM Flip-Top Ammo Box is designed to hold various calibers like 9mm Luger and 380 ACP, making it versatile for different ammunition types. Its textured surface helps resist scratches, so your box stays looking good even after regular use. With a compact size that fits rounds up to 1.22 inches long, it keeps your ammo organized and secure. The box also features stacking feet and a mechanical hinge, which make it easy to store multiple boxes neatly and open or close smoothly. This thoughtful design helps you manage your ammo efficiently and with convenience.

What We Like
Sturdy plastic construction
Secure locking lid
Stackable design
Compact and space-saving
Great price value
#TOP 10

MTM 100 Round Rifle Ammo Box

MTM
RS-100-24
Clear Blue
2.65 inch
MTM 100 Round Rifle Ammo Box Cover
MTM 100 Round Rifle Ammo Box 17, 204, 223, 5.56x45, 6x47, Clear Blue

The MTM 100 Round Rifle Ammo Box is designed for 17 / 222 / 223 Rem, 5.56 x 45, 204 Rug. It features a scuff-resistant textured surface, mechanical hinge, stacking feet, and load labels. The snap lock latch ensures secure storage of your ammo. The box has a maximum overall length of 2.65 inches. It comes with a 25-year guarantee and is made in the USA.

What We Like
Sturdy and well-constructed
Secure snap-lock latch
Perfect fit for .223 and 5.56
Clear construction for easy identification
Labels included for organization
Buying Guide Image

Factors to Consider when Choosing 50 Caliber Ammo Boxes

Material and Durability

When selecting a 50 caliber ammo box, consider the material it is made of. Look for boxes constructed from durable materials like high-impact plastic or heavy-duty metal. These materials offer superior strength and protection for your ammunition, ensuring it remains safe and secure during transport or storage.

Capacity and Size

Consider the capacity and size of the ammo box. Determine how much ammunition you need to store or transport, and choose a box that can accommodate your specific requirements. Look for boxes with adjustable dividers or foam inserts that allow you to customize the space according to your needs.

Waterproof and Airtight

It is essential to choose an ammo box that is waterproof and airtight. This feature helps to protect your ammunition from moisture, dust, and other environmental factors that could damage its integrity. Look for boxes with rubber gaskets or O-rings that create a tight seal when closed.

Locking Mechanism

Consider the type of locking mechanism the ammo box utilizes. Look for boxes with secure locking mechanisms, such as latches or padlock holes, to prevent unauthorized access to your ammunition.

Portability and Handling

Lastly, consider the portability and handling features of the ammo box. Look for boxes with comfortable handles or carrying straps that make it easy to transport your ammunition. Additionally, consider boxes with stackable designs, as they allow for efficient storage and organization.

Frequently Asked Questions (FAQs)

1. How many boxes of 9mm fit in a 50 cal ammo can?

You can fit approximately 20 boxes of 9mm ammo (50 rounds per box) into a 50 cal ammo can. If you remove the ammo from the boxes, you may be able to fit even more.

2. How many boxes of 12 gauge shells fit in 50 cal ammo can?

A 50 cal ammo can can comfortably hold around 100 rounds of 12 gauge shotgun shells. This may vary depending on the specific size of the ammo can and the packaging of the shells.

3. How many rounds of 5.56 fit in a 50 cal ammo can?

A 50 cal ammo can can hold up to 800 rounds of 5.56 or 2.23 ammo. This can vary depending on the specific dimensions of the ammo can and how the rounds are packed.

4. How much 5.56 fits in 50 cal ammo can?

A 50 cal ammo can can hold up to 800 rounds of 5.56 or 2.23 ammo. The exact number may depend on the specific dimensions of the ammo can and how the rounds are packed.

Editor's Notes

During our 50 caliber ammo boxes research, we found 24 50 caliber ammo boxes products and shortlisted 10 quality products. We collected and analyzed 315,180 customer reviews through our big data system to write the 50 caliber ammo boxes list. We found that most customers choose 50 caliber ammo boxes with an average price of $11.11.

The 50 caliber ammo boxes are available for purchase. We have researched hundreds of brands and picked the top brands of 50 caliber ammo boxes, including FORTRESS, MTM, Plano, Sheffield. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Paul Tilton Avatar

Paul Tilton is a fitness enthusiast. He doesn't like to work in front of a computer screen so he quit his job and runs a gym in Washington. He spent a lot of time on the road and has been a contributing writer for a well-known travel guide website. He is now happy to share his travel experience and professional knowledge of travel gear and fitness here.