Ammo cans are great for organizing gear, but without a proper lock they’re only partly secure. The right lock kit adds a simple layer of protection for ammunition, tools, documents, and emergency supplies.
In this roundup, we focus on ammo can locks that are easy to install, compatible with common can sizes, and built to hold up in regular use.
Best 10 Ammo Can Locks Picks for 2026
Single Kit Pick
Compact Stainless Lock Kit for Single Ammo Cans
- Fits common steel ammo can sizes
- Stainless steel hardware resists rust
- Includes gasket washer and install directions
Best For: one compatible ammo can that needs a simple lock upgrade
Two-Pack Value
Value 2-Pack Hardware for Lockable Ammo Boxes
- Includes two lock hardware kits
- Fits several common ammo can sizes
- Neoprene washer helps maintain water resistance
Best For: upgrading more than one ammo can at once
Two-Kit Bundle
Dual Kit Pack for Spare Ammo Can Locks
- Includes 2 locking hardware kits
- Fits common steel ammo can sizes
- Stainless steel parts help resist rust
Best For: two ammo cans or keeping a spare kit on hand
Bulk Replacement Pack
Four-Pack Replacement Kit for Ammo Box Locks
- Includes four hardware kits
- Compatible with common metal ammo cans
- Gasket supports waterproof sealing
Best For: bulk replacement or outfitting several ammo boxes
Rust-Resistant 4-Pack Kit
Case Club Steel Ammo Can Lock Hardware
- Includes 4 locking hardware kits.
- Fits 50 Cal, Fat 50, 30 Cal, 20 mm, and 40 mm cans.
- Stainless steel hardware and gasket washer help with rust and sealing.
Best For: Outfitting multiple steel ammo cans with rust-resistant, watertight hardware.
Lock-Nut Drill-Assist Kit
Stainless Ammo Box Lock Hardware
- Lock nuts replace standard nuts.
- Includes a step drill for the two-hole install.
- Stainless steel parts and rubber gasket aim for durability and sealing.
Best For: DIY installs that benefit from drill guidance and upgraded fasteners.
Compact 3-Pack Hardware
- 3-count kit keeps the hardware set smaller.
- Stainless steel parts are built for longer service life.
- Rubber gasket is designed for sealing and water resistance.
Best For: A smaller install kit for one or a few ammo cans.
Secure Install Kit
Stainless Steel Ammo Can Lock Kit
- Stainless steel lock bars and accessories
- Includes lock post, nut, gasket, and drill
- Rubber gasket adds sealing and water resistance
Best For: buyers who want an install-ready ammo can lock kit with corrosion-resistant parts
Value 10-Pack
Stainless Steel Ammo Can Lock Kit
- Listed as 10 items for extra value
- Stainless-steel lock bars and accessories
- Includes gasket and drill for install
Best For: shoppers who want extra quantity in a stainless-steel ammo can lock kit
Compact Hardware Set
Stainless Steel Ammo Can Lock Kit
- Compact kit with stainless-steel hardware
- Includes lock post, nut, gasket, and drill
- Rubber gasket improves sealing and water resistance
Best For: buyers who want the core ammo can lock parts in a compact kit
Single Kit Pick – Compact Stainless Lock Kit for Single Ammo Cans
If you want a straightforward way to add ammo can locks to a steel storage box, this Case Club kit is built for common can sizes and keeps the install simple. It uses stainless steel hardware to help resist rust, includes directions and a gasket washer, and is designed to keep the can watertight after installation.
Best For: Buyers who want a single lock hardware kit for a compatible steel ammo can.
Pros:
- Fits 50 Cal, Fat 50, 30 Cal, 20 mm, and 40 mm ammo cans
- Stainless steel hardware helps prevent rust
- Includes installation directions and gasket washer
- Works with medium-sized locks up to a 1/4" shackle
Cons:
- Ammo can is not included
- Padlock is not included
This is a practical pick if you already have the can and just need a durable, waterproof-friendly locking setup. It covers the most common steel can sizes and keeps the install focused on function rather than extras.
Two-Pack Value – Value 2-Pack Hardware for Lockable Ammo Boxes
Aolamegs Ammo Box Can Lock Hardware Kit .50 Cal, Fat 50,l 30 Cal, 20 mm, 40 mm (2pack)
Check Price On AmazonThis Aolamegs option is a practical choice if you are shopping for ammo can locks and want hardware that covers the common steel can sizes. It is made from stainless steel, includes the necessary washers and locknut for installation, and is designed to help the can stay waterproof with the neoprene washer.
Best For: Shoppers who want a two-count lock hardware kit for multiple ammo cans.
Pros:
- Two lock hardware kits included
- Fits 50 Cal, Fat 50, 30 Cal, 20 mm, and 40 mm cans
- Stainless steel construction helps prevent rust
- Neoprene washer helps keep water out
Cons:
- Ammo can is not included
- Lock is not included
For buyers who need to upgrade more than one container, this kit gives you extra value without changing the basic install. It is a solid, no-frills way to turn a standard metal ammo box into a lockable storage option.
Two-Kit Bundle – Dual Kit Pack for Spare Ammo Can Locks
If you need ammo can locks for more than one box, this Case Club two-pack keeps the setup consistent and easy to replace. The kits are made from stainless steel, include gasket washers for watertight use, and are built for the same common steel ammo can sizes as the single-kit version.
Best For: Buyers who want two matching lock hardware kits for ammo can setups.
Pros:
- Comes with 2 locking hardware kits
- Works with 50 Cal, Fat 50, 30 Cal, 20 mm, and 40 mm ammo cans
- Stainless steel hardware helps prevent rust
- Includes gasket washer and installation directions
Cons:
- Ammo can is not included
- Padlock is not included
This pack makes sense if you want a backup kit or need to outfit two cans at once. It is a straightforward hardware-only solution with the durability and fitment most buyers look for in ammo can locks.
Bulk Replacement Pack – Four-Pack Replacement Kit for Ammo Box Locks
For buyers looking at ammo can locks in bulk, this Lounsweer four-set is aimed at replacement and repeat use. It is compatible with several standard metal can sizes, uses stainless steel for corrosion resistance, and includes gasket support to help maintain a waterproof seal after installation.
Best For: Anyone who wants multiple replacement lock hardware kits for ammo storage boxes.
Pros:
- Four lock hardware kits included
- Fits 50 Cal, Fat 50, 30 Cal, 20 mm, and 40 mm metal cans
- Stainless steel material is durable and corrosion resistant
- Gasket provides sealing and waterproof performance
Cons:
- Ammo can is not included
- Lock is not included
This is the most practical option if you manage multiple cans or want replacements ready to go. It stays focused on compatibility and hardware durability, making it a strong bulk choice for lockable ammo storage.
Rust-Resistant 4-Pack Kit – Case Club Steel Ammo Can Lock Hardware
If you want ammo can locks for multiple steel cans, this Case Club kit is built around a simple, practical install. It includes four locking hardware kits and is designed for 50 Cal, Fat 50, 30 Cal, 20 mm, and 40 mm ammo cans, with stainless steel hardware and a gasket washer to help keep the can watertight.
Best For: Buyers outfitting several steel ammo cans who want rust-resistant hardware and a watertight seal.
Pros:
- Comes with 4 locking hardware kits.
- Works on 50 Cal, Fat 50, 30 Cal, 20 mm, and 40 mm ammo cans.
- Stainless steel hardware helps prevent rust.
- Includes installation directions and a gasket washer.
Cons:
- Ammo can and padlock are not included.
- Listed for steel cans, so fit is more specific than universal.
This is a straightforward choice if your priority is a corrosion-resistant ammo can lock kit with enough pieces to secure more than one container. The included watertight gasket washer is a useful touch for storage setups that need to stay sealed.
Lock-Nut Drill-Assist Kit – Stainless Ammo Box Lock Hardware
Ammo can Lock kit Metal Ammo Box Locking Hardware case Lock for 50 Cal, Fat 50, 30 Cal, 20 mm, 41 mm
Check Price On AmazonThis ammo can lock kit focuses on making the install cleaner and more secure, with lock nuts replacing standard nuts and a step drill included to help line up the two holes. It uses stainless steel lock bars and accessories, plus a rubber gasket for better sealing and water resistance.
Best For: DIY buyers who want a drill-assisted ammo can lock kit with upgraded fasteners and sealing parts.
Pros:
- Lock nuts replace standard nuts.
- Includes a step drill to help with drilling the two holes.
- Stainless steel lock bars and accessories offer longer service life.
- Rubber gasket improves sealing and water resistance.
Cons:
- Ammo can box is not included.
- Installation notes stress drilling speed and hole sizes, so setup needs care.
If you want ammo can locks with extra install help, this kit is geared toward a more guided DIY job. The included drill bit and lock-nut hardware are the standout features for anyone who wants a tighter, more finished result.
Compact 3-Pack Hardware – Stainless Ammo Can Lock Kit
Ammo can Lock kit Metal Ammo Box Locking Hardware case Lock for 50 Cal, Fat 50, 30 Cal, 20 mm, 40 mm
Check Price On AmazonFor shoppers comparing ammo can locks by piece count and materials, this 3-count kit keeps the same basic stainless steel, water-resistant formula. It is designed for 50 Cal, Fat 50, 30 Cal, 20 mm, and 40 mm ammo cans, and it also includes the drill needed for the install.
Best For: Buyers who want a smaller stainless steel ammo can lock kit with the drill included.
Pros:
- 3-count kit offers a smaller hardware set.
- Made with stainless steel lock bars and accessories.
- Rubber gasket has good sealing and water resistance.
- Includes the drill and other locking components.
Cons:
- Ammo can box is not included.
- Installation still calls for careful drilling and correct hole sizes.
This version makes sense if you want the same style of ammo box locking hardware but do not need the larger 4-pack. It is a practical pick for a single project or a smaller set of cans, especially when you want the drill bundled in.
Secure Install Kit – Stainless Steel Ammo Can Lock Kit
Ammo can Lock kit Metal Ammo Box Locking Hardware case Lock for 50 Cal, Fat 50, 30 Cal, 20 mm, 40 mm
Check Price On AmazonIf you want ammo can locks that come with the basic install hardware and guidance to make the job easier, this kit is built around a practical, do-it-right approach. It includes stainless steel lock bars and accessories, plus a rubber gasket for better sealing and water resistance.
Best For: Buyers who want a stainless-steel ammo can lock kit with included drill and install-focused hardware.
Pros:
- Stainless steel lock bars and accessories for longer service life
- Rubber gasket designed for good sealing and water resistance
- Includes lock post, nut, gasket, and drill
- Step drill guidance is included to help with installation
Cons:
- Ammo can box itself is not included
- Installation calls for careful drilling and attention to speed
- Fit depends on following the provided picture and instructions closely
This is a straightforward hardware-first option for securing compatible ammo cans, especially if you value the included install pieces and corrosion-resistant materials.
Value 10-Pack – Stainless Steel Ammo Can Lock Kit
Ammo can Lock kit Metal Ammo Box Locking Hardware case Lock for 50 Cal, Fat 50, 30 Cal, 20 mm, 40 mm
Check Price On AmazonThis ammo can locks kit follows the same install-focused design, but the listed 10-item count makes it a strong pick if you want multiple pieces on hand. It uses stainless-steel components, includes a drill, and adds a rubber gasket for sealing and water resistance.
Best For: Buyers who want a 10-item ammo can lock kit with stainless-steel hardware and extra quantity.
Pros:
- Listed as 10 items for added value
- Stainless-steel lock bars and accessories
- Includes lock post, nut, gasket, and drill
- Rubber gasket supports sealing and water resistance
Cons:
- Ammo can box is not included
- Requires careful drilling during installation
- Fit and setup depend on following the pictured instructions
If you are comparing ammo can locks by quantity as much as hardware, this version stands out for being the most item-rich of the group while keeping the same stainless-steel build.
Compact Hardware Set – Stainless Steel Ammo Can Lock Kit
Ammo can Lock kit Metal Ammo Box Locking Hardware case Lock for 50 Cal, Fat 50, 30 Cal, 20 mm, 40 mm
Check Price On AmazonFor buyers focused on a compact hardware package, this ammo can locks kit keeps the essentials together in a small-format set. It uses stainless-steel components, includes a drill, and adds a rubber gasket for better sealing and water resistance.
Best For: Buyers who want a compact stainless-steel ammo can lock kit with the core install parts included.
Pros:
- Stainless-steel lock bars and accessories
- Includes lock post, nut, gasket, and drill
- Rubber gasket helps with sealing and water resistance
- Designed for use with multiple ammo can sizes listed in the title
Cons:
- Ammo can box is not included
- Installation requires careful drilling and attention to speed
- Smaller package dimensions may matter if you want extra accessories
This is a simple, no-frills choice for securing a compatible ammo can with stainless hardware and the basic install tools already in the box.
How We Picked the Best Ammo Can Locks
We looked for Ammo Can Locks that balance security, fit, and installation simplicity. The best kits use sturdy metal hardware, fit common steel ammo can formats, and include the pieces needed for a clean mount without complicated modifications.
Compatibility matters because not every can is shaped the same. A good locking kit should work with popular sizes like 50 cal, Fat 50, 30 cal, 20 mm, and 40 mm cans, while still allowing the lid to close properly.
Quick Comparison
Some buyers want the easiest all-in-one kit. Others want a more flexible hardware set for multiple cans or repeated installs. In general, the best Ammo Can Locks fall into three groups: simple replacement-style kits, universal hardware kits, and multi-pack options for outfitting several cans at once.
Key Buying Factors for Ammo Can Locks
Fit and Can Compatibility
Check the can size before buying. A lock kit that fits one style of ammo can may not line up well on another. If you’re unsure, choose a kit that clearly lists support for multiple common can dimensions.
Material and Durability
Metal hardware is usually the better choice for long-term use. Look for corrosion-resistant finishes and parts that feel solid enough to resist bending or loosening over time.
Security Level
Ammo Can Locks are mainly about access control and deterrence. They are not a substitute for a safe, but they can make casual opening much harder and help keep contents more secure during storage or transport.
Installation and Tools
Some kits are straightforward to install with basic hand tools, while others may require drilling or careful alignment. If you want a fast setup, prioritize kits that include clear hardware and simple mounting instructions.
Single Can Vs. Multi-Can Use
If you only need one locked container, a basic kit may be enough. If you’re equipping multiple boxes, a multi-pack can be more cost-effective and keep your storage system consistent.
Who Should Buy Which Ammo Can Locks?
Choose a simple, well-matched kit if you want dependable everyday storage for one ammo can. Pick a more universal or multi-pack option if you have several cans, mixed sizes, or want to standardize your setup across a workshop, range bag, or emergency cache.
For most buyers, the best choice is the ammo can lock that fits your exact can type, installs cleanly, and feels sturdy enough for regular use. That combination usually delivers the best value and the least frustration over time.