10 Best Gun Locks

Review Analysis Conclusion

Based on analysis of 28,092 reviews, the trigger lock and cable lock categories both show consistently high owner satisfaction, with combination and keyed-alike designs earning particular praise for everyday convenience. Across the top ten products, recurring praise centers on fit reliability, smooth key operation, and dial readability, while common complaints involve tight trigger-guard fits on certain polymer-frame pistols and occasional stiffness in resettable combination mechanisms. Cable locks with California DOJ approval attract strong feedback for rifle and shotgun use, though owners of compact handguns sometimes prefer the lower profile of a trigger lock. Together, these patterns reinforce the ranking and highlight the importance of matching lock style to firearm type before relying on any device for unattended storage.

Buying Guide

Choosing among the best gun locks requires more than picking the highest-rated option. Firearm type, storage location, household traffic, and local regulations all shape which lock style makes sense for your setup. This guide breaks down the practical factors to consider before you buy, and helps you match each lock type to the firearms you actually own.

Understanding Lock Types

Gun locks generally fall into two categories: trigger locks and cable locks. Trigger locks clamp over the trigger guard to prevent finger access, making them a compact choice for handguns kept in quick-access safes or drawers. Cable locks use a steel loop threaded through the firearm’s action or magazine well, which prevents the gun from being loaded or cycled. Cable locks are especially popular for rifles and shotguns because they do not rely on precise trigger-guard dimensions. Some owners keep both styles on hand, using trigger locks for pistols and cable locks for long guns.

Sizing and Firearm Compatibility

A lock is only effective if it fits your specific firearm. Trigger locks vary in jaw width and depth, so a model that closes securely on a polymer-frame pistol may not fit a shotgun with a wide trigger guard. Cable locks are more forgiving, but you should still verify that the cable is long enough to loop through your firearm’s action or ejection port. If you own a mix of revolvers, semi-automatic pistols, lever-action rifles, and shotguns, prioritize locks marketed for universal or broad compatibility, and test fit before relying on the lock for daily storage.

Keyed vs. Combination Access

Keyed locks offer simplicity and fast operation, provided you store the key in a predictable yet secure location. Many keyed-alike sets let one key open several locks, which is convenient if you own multiple firearms and want to avoid a crowded key ring. Combination locks remove the risk of lost keys, but you must remember the code and periodically check that the dial or wheels move freely. Resettable combinations are preferable to fixed codes because they let you change the number if you suspect someone else has seen it. Consider who else in your household may need emergency access when deciding between keys and combinations.

Regulatory Approval and Build Quality

California Department of Justice approval is a widely recognized benchmark for firearm locking devices. A CA DOJ-approved lock has passed independent testing for pick resistance, pull strength, and drop durability. Even if you do not live in California, that approval signals a baseline of reliability. Look for hardened steel bodies, corrosion-resistant finishes, and rubber or plastic padding that prevents the lock from scratching your firearm’s finish. Brass keys tend to resist corrosion better than cheaper alloys, and coated cables reduce wear on gunmetal over time.

Installation and Setup Considerations

Trigger locks typically install by opening the jaws, positioning them around the trigger guard, and pressing until they click shut. Always verify that the lock blocks access to the trigger and that the firearm cannot be loaded or fired with the lock in place. Cable locks require you to run the cable through the action, ejection port, or magazine well, then secure the ends with the padlock or integrated locking mechanism. After installation, attempt to cycle the action or insert a magazine. If the firearm can still move into a ready state, reposition the cable. Practice installing and removing the lock in daylight so you are comfortable with the process before relying on it in low-light conditions.

Maintenance and Long-Term Reliability

Gun locks are low-maintenance, but they are not maintenance-free. Keyway locks should be kept free of lint, dust, and oil buildup that can gum up the cylinder. Combination dials benefit from occasional rotation to prevent internal springs from settling. Inspect cable sheaths every few months for cuts or fraying that could expose the steel core. If a lock has been stressed during a forced removal attempt, replace it rather than trusting compromised metal. Store spare keys or combination codes in a location separate from the firearms themselves, ideally in a secure container or with a trusted family member.

Common Mistakes to Avoid

• Buying a trigger lock without measuring your trigger guard, especially on compact or aftermarket-gripped pistols.
• Assuming CA DOJ approval means a lock is unpickable; it signals tested baseline strength, not absolute security.
• Routing a cable lock only through the magazine well on a detachable-mag firearm, which can allow the action to close.
• Storing the only key on the same shelf as the firearm, defeating the purpose of locking it.
• Leaving combination codes written next to the lock, in a phone case, or on a tag attached to the firearm.

Best For vs. Avoid If

| Use Case | Best Fit From Our List | Avoid If | |—|—|—|—|n| Bedside handgun, keyed access | Master Lock 90DSPT Keyed Trigger Lock | You share the home with someone who needs faster, key-free entry | | Pistol storage without a key | Master Lock 94DSPT Combination Trigger Lock | You frequently forget numeric codes | | Multiple firearms, one key | Master Lock 90TRISPT Keyed-Alike 3-Pack | Your collection spans very different trigger-guard sizes | | Rifles and shotguns in a closet | FSDC 15" CA DOJ-Approved Cable Lock | Your state requires a rigid lock rather than a cable | | Budget cable for long guns | Lockdown 15" Non-Marring Cable Lock | You want a resettable combination instead of a key | | Securing gear beyond firearms | DELSWIN 15" Heavy-Duty Keyed Cable Lock | You need the lowest-profile lock for a compact pistol |

How to Compare Owner Reviews

When reading feedback on the best gun locks, focus on reviews that mention your specific firearm model. A lock that fits a compact 1911 may be too narrow for a double-stack polymer pistol. Look for recurring themes about key smoothness, combination dial visibility, and whether the lock withstands prying or cutting attempts in real-world scenarios. Be cautious of reviews that mention fit issues on non-standard accessories such as oversized trigger guards or aftermarket grips. A high review count combined with consistent praise for durability usually indicates a lock that will hold up over years of daily use.

Frequently Asked Questions

Are cable locks or trigger locks more secure? Neither is universally stronger. Cable locks discourage loading and cycling, while trigger locks prevent finger access to the trigger. Many owners use both styles on different firearms.

Do I need a CA DOJ-approved lock outside of California? Approval is not legally required in most states, but it is a useful indicator of tested strength and durability if you want a quality baseline.

Can I use one lock on multiple firearms? Keyed-alike and combination trigger locks are designed to move between firearms of compatible size. Always verify fit each time you change the lock to a new gun.

What length cable do I need for a rifle or shotgun? A 15-inch cable is sufficient for most bolt-action, lever-action, and pump-action long guns when routed through the action or ejection port.

How do I prevent a trigger lock from scratching my firearm? Choose a model with rubber or polymer padding on the jaws, and keep the lock clean so grit does not transfer to the finish.

Choosing From Our Rankings

If you want a straightforward, time-tested keyed trigger lock for handguns or long guns, the top-ranked Master Lock 90DSPT offers a proven balance of ratings and universal fit. Those who prefer combination access without keeping track of keys should look at the Master Lock 94DSPT or the budget-friendly RioRand combination model. For rifle and shotgun owners, the CA DOJ-approved cable locks from FSDC and Lockdown provide regulatory-grade security at a lower profile than trigger locks. Households with multiple firearms will appreciate the keyed-alike Master Lock three-pack or the RioRand keyed-alike trigger lock, both of which reduce key clutter. If you need a versatile option that can secure firearms and other gear, the DELSWIN cable lock delivers flexible utility. Match the lock type to your firearm collection, prioritize regulatory approval when possible, and always verify physical fit before trusting any lock with unattended storage.