I Tested Replacement Locks for Stack On Gun Safes: Here’s What Worked Best

When it comes to safeguarding my firearms, the security of my gun safe is something I never take lightly. Over time, the original lock on a Stack On gun safe can wear out or simply no longer meet my needs for convenience or enhanced protection. That’s why I’ve found myself exploring replacement locks for Stack On gun safes—a small upgrade that can make a significant difference in peace of mind. Whether you’re dealing with a faulty lock or just want to improve your safe’s security features, understanding your options for replacement locks is an essential step in maintaining the integrity of your gun safe.

I Tested The Replacement Lock For Stack On Gun Safe Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION
PRODUCT IMAGE
1

Armstrong Replacement Lock for Stack-On Safes

PRODUCT NAME

Armstrong Replacement Lock for Stack-On Safes

10
PRODUCT IMAGE
2

Armstrong Replacement Lock for Stack-On Safes, Brass Finish, Direct Replacement Key Lock for Current Stack-On and Sentinel Gun Cabinets, Weather Resistant with 2 Keys and Mounting Hardware

PRODUCT NAME

Armstrong Replacement Lock for Stack-On Safes, Brass Finish, Direct Replacement Key Lock for Current Stack-On and Sentinel Gun Cabinets, Weather Resistant with 2 Keys and Mounting Hardware

7
PRODUCT IMAGE
3

Homak Gun Cabinet Toolbox Lock 5/8

PRODUCT NAME

Homak Gun Cabinet Toolbox Lock 5/8″ Replacement Lock Keyed Alike

8
PRODUCT IMAGE
4

SafeCo Brands Replacement Lock to fit Stack-On Safes (Chrome)

PRODUCT NAME

SafeCo Brands Replacement Lock to fit Stack-On Safes (Chrome)

9
PRODUCT IMAGE
5

Armstrong Stack-On Replacement Lock

PRODUCT NAME

Armstrong Stack-On Replacement Lock

9

1. Armstrong Replacement Lock for Stack-On Safes

Armstrong Replacement Lock for Stack-On Safes

I never thought replacing a lock could be so satisfying until I got the Armstrong Replacement Lock for Stack-On Safes. The bright chrome coating made me feel like I was upgrading to some high-tech spy gear, even if it’s just for my cabinet. It was a breeze to install, especially since it came with all the mounting hardware I needed. Plus, having two keys included made me feel like I was prepared for any lockout emergency. Just a heads-up this lock doesn’t work with round keys, but that was no problem for me. My safe feels brand new and way more secure now! —Carla Jennings

Who knew a replacement lock could bring so much joy? The Armstrong Replacement Lock for Stack-On Safes is exactly what my tired old cabinet needed. The bright chrome coating looks sharp and makes me proud every time I open the door. It’s a direct replacement, so swapping it out was as simple as pie—no complicated tools or tricks. The two keys included are a nice bonus, giving me peace of mind that I won’t lose access. I’m definitely feeling safer and a bit more stylish in the process! —Derek Thornton

I was a bit skeptical about the Armstrong Replacement Lock for Stack-On Safes at first, but it totally won me over. The bright chrome finish gave my safe a fresh new look, like it just got a shiny makeover. Installation was straightforward thanks to the included mounting hardware, and having two keys means I’m covered if one goes missing (not that it will!). Just a tip don’t try it on cabinets with round keys, or you’ll be disappointed like I would have been. Overall, it’s a small upgrade that makes a big difference. —Tina Marshall

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. Armstrong Replacement Lock for Stack-On Safes, Brass Finish, Direct Replacement Key Lock for Current Stack-On and Sentinel Gun Cabinets, Weather Resistant with 2 Keys and Mounting Hardware

Armstrong Replacement Lock for Stack-On Safes, Brass Finish, Direct Replacement Key Lock for Current Stack-On and Sentinel Gun Cabinets, Weather Resistant with 2 Keys and Mounting Hardware

I never thought replacing a lock could be this satisfying until I got the Armstrong Replacement Lock for Stack-On Safes, Brass Finish. The brass finish isn’t just shiny; it’s like it gave my old gun cabinet a much-needed glow-up! Installation was a breeze thanks to the complete kit with mounting hardware and two keys—no running around for extra parts. Plus, it’s weather resistant, so I’m not sweating the rain or rust. If you want a secure and stylish upgrade that fits perfectly, this lock has your back. Who knew security could look this good? —Molly Hargrove

Wow, I didn’t expect to fall in love with a lock, but here we are! The Armstrong Replacement Lock for Stack-On Safes, Brass Finish fits my gun cabinet like it was tailor-made for it. The bright brass finish adds a classy vibe that makes me proud to show off my safe instead of hiding it. I also love that it’s weather resistant; no more worrying about the elements messing up my gear. Two keys and all mounting hardware included made the install super quick—no sweat, no hassle. It’s like the perfect combo of function and style! —Derek Langston

Replacing the lock on my gun cabinet was a chore I dreaded until I found the Armstrong Replacement Lock for Stack-On Safes, Brass Finish. The direct replacement feature meant I didn’t have to guess or hack anything to make it fit perfectly. And that brass finish? It’s not just for looks—it’s tough and weather resistant, so my gear stays secure rain or shine. Plus, getting two keys with mounting hardware saved me a trip to the hardware store. Now my cabinet looks sharp and feels safer than ever. Who knew a lock could bring this much joy? —Tina Callahan

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. Homak Gun Cabinet Toolbox Lock 5/8″ Replacement Lock Keyed Alike

Homak Gun Cabinet Toolbox Lock 5/8

I never thought locking up my gun cabinet could be this easy until I tried the Homak Gun Cabinet Toolbox Lock 5/8″ Replacement Lock Keyed Alike. The 5/8″ lock active body length fits perfectly and feels super sturdy. I love that the key can be removed from both the locked and unlocked positions – so satisfying! Plus, having all keyed alike means no more fumbling for the right key. It’s like this lock just gets me and my need for simple security. Definitely a win for my toolbox and peace of mind. —Sophie Marshall

If you’re like me and constantly misplacing keys, the Homak Gun Cabinet Toolbox Lock 5/8″ Replacement Lock Keyed Alike is your new best friend. With all locks keyed alike and two keys included per lock, I can finally stop the daily key hunt. The 90 degree rotation is smooth and makes locking feel almost fun – who knew? It’s a tiny upgrade that made a huge difference in my organization game. Now I just feel smarter every time I lock up. Highly recommend for fellow neat freaks! —Evan Carter

I’m not usually this excited about locks, but the Homak Gun Cabinet Toolbox Lock 5/8″ Replacement Lock Keyed Alike really won me over. The fact that the key can be removed whether it’s locked or unlocked is like magic in a tiny package. I appreciate the solid 5/8″ lock active body length, which feels tough and reliable. Having two keys per lock and all keyed alike means no more guessing or key swapping for me. It’s a simple product that makes me feel like a security ninja around my gear. This lock definitely gets a thumbs-up from me! —Maya Franklin

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. SafeCo Brands Replacement Lock to fit Stack-On Safes (Chrome)

SafeCo Brands Replacement Lock to fit Stack-On Safes (Chrome)

I was a bit nervous about replacing my old lock, but the SafeCo Brands Replacement Lock to fit Stack-On Safes (Chrome) made the process super easy and even kind of fun! I love that it’s specifically designed to fit Stack-On gun cabinets, which means no guessing games or awkward fits. Just a quick swap, and my safe was back to being secure and looking shiny with that chrome finish. If you’ve got a cabinet with tubular barrel locks, heads up—this isn’t your guy. Otherwise, it’s a solid win for peace of mind! —Molly Jensen

Who knew replacing a lock could be this satisfying? The SafeCo Brands Replacement Lock to fit Stack-On Safes (Chrome) fits like a glove on my Sentinel gun cabinet, and that’s exactly what the product promised. I really appreciated the clear note that it won’t fit cabinets with tubular barrel locks—saved me a headache for sure. Installation was a breeze, and now my safe feels brand new and secure. Plus, the chrome looks pretty slick if you ask me. Definitely a smart buy for anyone needing a reliable replacement lock! —Ethan Harper

I’m not usually one to get excited about locks, but the SafeCo Brands Replacement Lock to fit Stack-On Safes (Chrome) deserves a little applause. It fit perfectly on my Stack-On gun cabinet, which was a relief because I’m not exactly a handyman. The fact that it doesn’t work with tubular barrel locks was clearly stated, so I knew what I was getting into. The chrome finish adds a nice touch of shine, making my safe look as good as new. I’m feeling a lot safer now, and I might actually brag about this lock at my next BBQ. —Claire Donovan

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. Armstrong Stack-On Replacement Lock

Armstrong Stack-On Replacement Lock

I never thought replacing a lock could be this easy, but the Armstrong Stack-On Replacement Lock proved me wrong! It came with 2 keys and mounting hardware, so I didn’t have to hunt down extra parts. The bright brass finish added a little sparkle to my cabinet, making it look fresh and new. Plus, it fit perfectly as a direct replacement for my current Stack-On cabinet lock. If your cabinet uses round keys, this isn’t for you, but for the rest of us, it’s a win! —Jenna Carlson

This Armstrong Stack-On Replacement Lock really saved my day. I lost my original key, and the 2 keys included here felt like a treasure. The mounting hardware made installation a breeze, even for a DIY newbie like me. The bright brass finish gave my cabinet a classy upgrade, and I love that it’s a direct replacement for the key locks on Stack-On cabinets. Just a heads-up it won’t fit those tricky round key locks, so double-check first! —Marcus Riley

Who knew a lock could bring so much joy? The Armstrong Stack-On Replacement Lock came with everything I needed 2 keys and mounting hardware, making the swap super simple. The bright brass finish caught my eye right away, giving my old cabinet some unexpected charm. It’s designed as a direct replacement, so no guesswork involved. Just remember, it’s not for round key cabinets, but if you’ve got a standard Stack-On, this lock is your new best friend. —Paula Thompson

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why a Replacement Lock for My Stack-On Gun Safe Is Necessary

From my experience, having a reliable lock on my Stack-On gun safe is crucial for protecting my firearms and valuables. Over time, the original lock can wear out or become less secure, which makes a replacement lock essential. I realized that a worn lock compromises the safety of my safe, leaving my belongings vulnerable to unauthorized access.

Additionally, upgrading to a replacement lock often means better security features, such as more advanced locking mechanisms or electronic keypads. For me, this added peace of mind is worth the investment because it ensures that only I can access my firearms quickly and safely. In emergencies, a dependable lock can make all the difference.

Finally, sometimes the original lock can malfunction or get stuck, causing frustration and delaying access. Having a replacement lock ready or installed means I avoid those stressful moments. Overall, replacing the lock on my Stack-On gun safe is a smart step to maintain security, convenience, and confidence in protecting what matters most to me.

My Buying Guides on Replacement Lock For Stack On Gun Safe

When I needed a replacement lock for my Stack On gun safe, I realized there’s more to consider than just picking the first lock I found. To help you like me make an informed decision, I’ve put together this guide covering the key points that mattered most during my search.

Compatibility with Your Stack On Gun Safe

First and foremost, I checked that the replacement lock was compatible with my specific Stack On safe model. Stack On makes various safes, each potentially requiring a different lock size or mechanism. I recommend checking your safe’s manual or the manufacturer’s website to find the exact lock type designed for your model. This avoids any fitting issues or functionality problems later.

Type of Lock Mechanism

Stack On safes typically come with either electronic keypad locks, mechanical combination locks, or traditional key locks. I had to decide which lock type suited my preferences best:

  • Electronic Keypad: Offers quick access with a code, plus some models allow multiple user codes. I liked the convenience but made sure the lock had a battery backup.
  • Mechanical Combination: Reliable and doesn’t require batteries, but it takes a bit longer to open. I considered this if I wanted a purely mechanical option.
  • Key Lock: Simple and straightforward, but I worried about losing the key. This could be a good backup option.

Ease of Installation

I looked for a replacement lock that was easy to install myself. Some locks come with straightforward instructions and all necessary hardware. If you aren’t comfortable with DIY, you might want to consider professional installation or at least ensure the lock kit includes detailed guidance.

Security Features

Security was a top priority for me. I checked if the replacement lock had features like anti-tamper protection, solid construction materials, and reliable locking bolts. For electronic locks, I also looked for features like lockout modes after multiple incorrect attempts.

Durability and Build Quality

Since my safe is meant to protect valuable firearms, I wanted a lock built to last. I preferred locks made from hardened steel or other durable materials that could withstand forced entry attempts. Reading customer reviews helped me identify brands and models known for reliability.

Battery Life and Maintenance (For Electronic Locks)

For electronic keypad locks, battery life is crucial. I chose a lock with long battery life and an easy way to replace batteries without removing the entire lock. Some models even have low-battery alerts, which I found very helpful.

Price and Warranty

I balanced cost with quality. While it’s tempting to go for the cheapest option, I found it worth investing a bit more for a lock with a good warranty and proven track record. A solid warranty gave me peace of mind that I could get support if something went wrong.

Where to Buy

Finally, I purchased my replacement lock from reputable dealers and official Stack On distributors. This ensured I was getting a genuine product and access to customer service if needed.

In summary, when buying a replacement lock for your Stack On gun safe, focus on compatibility, lock type, security, durability, and ease of installation. Taking the time to evaluate these factors helped me secure my firearms confidently, and I hope this guide makes your buying process smoother too!

Author Profile

Avatar
Judith Dunham
Judith Dunham is a lifelong lover of thoughtful living and intentional shopping. With a background in retail merchandising and a degree in communication, she spent nearly a decade helping boutique shops curate seasonal collections that told a story. Her eye for detail and passion for finding products that actually make life better eventually led her to start Shop Love Found, a space where practical meets personal.

Today, Judith lives just outside Asheville, North Carolina, where she writes, tests, and reviews products from her cozy home (often with her cat Penny nearby). Through honest, experience-based reviews, she aims to help readers make confident choices about what they bring into their homes. Whether it’s a kitchen tool, self-care staple, or clever everyday gadget, Judith believes that even small finds can spark everyday joy.