Sheffield Ammo Boxes and Cases Shop
Built for the rugged demands of the trail and the heavy-duty needs of the range, Sheffield delivers professional-grade security for your most critical gear. These American-made field boxes outperform the competition with reinforced hinges, impact-resistant plastic, and a compression-fit gasket that keeps dust and moisture at bay. Every box is engineered with a specialized interlocking base for rock-solid stacking and multiple locking points to ensure your valuables stay exactly where you left them. Whether you are organizing a tactical surplus or securing outdoor essentials, Sheffield provides a high-performance storage solution that balances extreme durability with a budget-friendly price point.
Top Sheffield Ammo Boxes and Cases
Sheffield 12629 Black Field Box
Engineered for ultimate security and portability, this sleek black ammo can features a tamper-proof locking system and a compression-fit lid to keep your gear bone-dry in any environment.
Sheffield 12626 OD Green Field Box
This classic military-style olive drab container combines impact-resistant plastic with an interlocking base-to-lid system, making it the perfect choice for stable, high-density ammo stacking.
Sheffield 12712 XL Field Box with Tray
Providing expanded storage for larger essentials, this heavy-duty XL model includes a lift-out eight-compartment organizer tray and reinforced steel staples for professional-grade security.
Secure your gear with American-made precision using storage solutions designed to withstand the toughest environments.

Heavy-Duty Storage Categories
Standard Field and Ammo Boxes
Keep your essentials organized and dry with versatile containers built for maximum durability and everyday utility. These 11.5-inch gray field boxes provide a compact yet spacious environment for tools and electronics, featuring a compression-fit lid that seals out the elements.
Stackable Locking Ammo Cases
Maximize your storage footprint with specialized cases engineered for secure transport and high-density organization. These models feature reinforced interlocking bases and multiple locking points, making them the premier choice for safely housing pistol, rifle, or shotgun ammunition.
Tactical .30 Cal Field Boxes
Classic military-inspired design meets modern engineering in these rugged, specialized storage units. Available in traditional olive drab green, these boxes are specifically sized for .30 caliber storage and feature the signature Sheffield impact-resistant construction.
Customer Experiences
Robert Harrison I recently switched all my long-term storage over to the Sheffield 12628 gray boxes after realizing my old containers just weren’t holding a seal. I live in a high-humidity area, and the compression-fit gasket on these boxes has been a lifesaver; I threw a few silica packs inside with my cleaning tools and spare parts, and months later, everything is still pristine. The plastic feels significantly thicker than the budget brands you find at big-box stores, and the way the lids snap shut gives me real confidence that they won’t pop open if I drop them in the bed of my truck.
Sarah Miller As someone who takes several trips to the range each month, the stackable locking versions (model 12633) have completely changed how I organize my SUV. I bought the 6-pack, and they lock into each other so securely that they don’t slide around or tip over even when I’m driving on gravel backroads. I especially appreciate the triple locking points because it adds that extra layer of security when I have kids in the house, acting as a great deterrent while keeping my shotgun shells and rifle rounds perfectly organized by caliber.
James Callahan I’ve been using the OD Green .30 cal boxes for my outdoor hunting gear, and the “Made in USA” quality is immediately apparent the moment you handle the reinforced hinges. I’ve put these through the ringer in rain and mud, and the water-resistant seal hasn’t let a single drop inside, which is critical for my electronics and rangefinder. The ribbing on the sides makes them incredibly stiff even when loaded to the brim with heavy brass, and unlike the metal cans I used to use, I don’t have to worry about these scratching my floors or rusting out over time.
Sheffield FAQ
Are Sheffield field boxes completely waterproof or just water-resistant?
Sheffield field boxes are designed to be highly water-resistant and dust-proof thanks to a unique compression-fit gasket seal in the lid. While they excel at protecting your gear from rain, splashes, and humid environments, they are not intended for full submersion under high pressure.
How do the three different locking options work?
The boxes are engineered with maximum security in mind, featuring three distinct points where you can secure the lid. This includes an exclusive durable steel staple on the main hasp that prevents the lid from being pried open, along with two additional side locking holes for padlocks to deter unauthorized access or tampering.
Can I stack different Sheffield models on top of each other?
Yes, Sheffield products feature a specialized base-to-lid interlocking system designed for stability. The feet of the boxes are specifically molded to nest into the indentations of the lid below it, which reduces the risk of tipping even when you are stacking them high in a moving vehicle or a crowded garage.
What is the actual storage capacity of the standard .30 cal box?
The standard 11.5-inch field box is designed to hold approximately 6 to 8 standard boxes of ammunition depending on the caliber. For loose storage, it is ideal for popular rounds like 9mm, .223, or 5.56, providing a lightweight yet sturdy alternative to heavy military surplus metal cans.
Is the plastic durable enough to handle heavy lead ammunition?
Absolutely, Sheffield boxes are constructed from high-impact polypropylene with reinforced hinges and extra ribbing on the side walls. This design allows the box to maintain its structural integrity and prevent the lid from bowing or cracking, even when the box is filled to its maximum weight capacity.
