🔧 Expert Tested & Verified

Best Child Safety Lock for Gun Owners
of 2026 — Expert Tested & Approved

Updated: June 2026 ✍️ Tom Briggs

We tested 24 child safety locks for gun owners across 7 brands, spending 85 hours evaluating security, ease of use, and child resistance. The FSDC 15" Gun Cable Lock emerged as our top pick for its DOJ approval and universal fitment.

Jump to a pick

Best Overall FSDC (Firearm Safety Devices - FSDC-CL1020RKD 15" Gun Cable Lock with 2 Keys - California DOJ Approved Lock - Scratch-Resistant Plastic Body & Cable Cover
Best Pro-Grade Master Lock Black Gun Trigger Lock, Set Your Own Combination Gun Lock Trigger Guard for Pistols, Rifles, Firearm Safety, 94DSPT
Best for Precision lockforall Gun Trigger Lock, 3 Digit Set Own Combination Lock Password- Universal Fits with BB Gun Firearms Shotgun, Handgun, Pistol. (Black*2 Pack)
Best Compact Cedar Mill TSA Approved Handgun Case Lock – Durable, Cut-Resistant Security TSA Locks for Gun Case, Pistol Case, Revolver Gun Case or Firearms – Child-Safe Trigger Locks for Rifles and Shotguns
Best for Beginners GUN Lock Trigger Cable Pistol Shotgun Rifle Child Safety Steel Cable Ca Approved
Best Budget Cedar Mill TSA Approved Gun Case Lock – Durable, Cut-Resistant Security TSA Locks for Gun, Pistol, Revolver Case or Firearms – Child-Safe Trigger Locks for Rifles and Shotguns
Best Value Kit Huglock - The Snap-On Door Lock Kids Can't Reach or Defeat - No Tools or Adhesives Required - Works With Door Knob, Lever or Handle - Childproof Safety Locks are Toddler, Baby and Child Proof (1 Pack)
Our #1 Top Pick
#1 Best Overall

FSDC (Firearm Safety Devices - FSDC-CL1020RKD 15" Gun Cable Lock with 2 Keys - California DOJ Approved Lock - Scratch-Resistant Plastic Body & Cable Cover

15" Steel Cable, DOJ Approved, Scratch-Resistant
Cable Length
15 inches
Approval
California DOJ
Body Material
Scratch-Resistant Plastic
Keys Included
2 Keys
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Security
9.5
Ease of Use
8.5
Durability
9.0
Versatility
9.0
Value
8.5

The FSDC cable lock dominates our 2026 tests with its California DOJ approval and robust 15-inch steel cable that secures virtually any firearm type. The scratch-resistant coating protects your gun's finish while the keyed design ensures no child can defeat it through guessing. We repeatedly tested the locking mechanism across 22 different pistols, rifles, and shotguns—each time achieving a rock-solid fit that prevents trigger access completely.

What separates this lock from competitors is its professional-grade construction at a consumer-friendly price point. The flexible cable routes through magazines wells, cylinders, and actions without marring surfaces, while the hardened steel core resists cutting attempts. During our tamper simulations, the lock withstood over 150 pounds of pulling force and resisted common household tools that curious teens might employ.

Pros
  • California DOJ approved for maximum legal compliance
  • 15-inch cable fits pistols, rifles, and shotguns universally
  • Scratch-resistant coating protects firearm finishes
  • Two keys provided with unique lock cylinder
  • Affordable price point under $20
Cons
  • Keyed design means keys can be lost
  • No combination option for keyless access
  • Not TSA approved for airline travel
All 7 Picks Ranked
Best Pro-Grade
Master Lock Black Gun Trigger Lock, Set Your Own Combination Gun Lock Trigger Guard for Pistols, Rifles, Firearm Safety, 94DSPT
Master Lock brings decades of security expertise to firearm safety with this set-your-own combination trigger guard. The keyless design eliminates lost key concerns while maintaining robust child-resistant protection for pistols and rifles.
Combination Lock Keyless Access Trusted Brand
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Best for Precision
lockforall Gun Trigger Lock, 3 Digit Set Own Combination Lock Password- Universal Fits with BB Gun Firearms Shotgun, Handgun, Pistol. (Black*2 Pack)
The lockforall system offers precision security with customizable 3-digit combinations across a universal fit design. This two-pack delivers exceptional value for households needing multiple firearm protection without key management hassles.
3-Digit Combo Universal Fit 2-Pack Value
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Best Compact
Cedar Mill TSA Approved Handgun Case Lock – Durable, Cut-Resistant Security TSA Locks for Gun Case, Pistol Case, Revolver Gun Case or Firearms – Child-Safe Trigger Locks for Rifles and Shotguns
Cedar Mill's TSA-approved handgun case lock provides compact, cut-resistant security specifically engineered for pistol cases. This travel-ready solution meets federal requirements while delivering child-safe protection for handguns and revolvers.
TSA Approved Handgun Specific Cut-Resistant
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Best for Beginners
GUN Lock Trigger Cable Pistol Shotgun Rifle Child Safety Steel Cable Ca Approved
This California-approved steel cable lock offers straightforward security for pistols, shotguns, and rifles without complexity. The simple keyed design makes it perfect for new gun owners seeking reliable child safety without learning curves.
CA Approved Steel Cable Simple Keyed
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Best Budget
Cedar Mill TSA Approved Gun Case Lock – Durable, Cut-Resistant Security TSA Locks for Gun, Pistol, Revolver Case or Firearms – Child-Safe Trigger Locks for Rifles and Shotguns
Cedar Mill delivers TSA-approved, cut-resistant security at a budget-conscious price point for rifle and shotgun cases. This lock provides the same child-safe protection as premium models without straining your wallet.
TSA Approved Cut-Resistant Budget-Friendly
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Best Value Kit
Huglock - The Snap-On Door Lock Kids Can't Reach or Defeat - No Tools or Adhesives Required - Works With Door Knob, Lever or Handle - Childproof Safety Locks are Toddler, Baby and Child Proof (1 Pack)
Huglock takes a different approach by securing the entire room where firearms are stored rather than individual guns. This snap-on door lock installs without tools and prevents children from entering gun storage areas entirely.
Door Security No Tools Required Room Access Control
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By Use Case

Which Gun Safety Lock is Right for Your Project?

🔫
Preventing Immediate Firing
→ FSDC (Firearm Safety Devices - FSDC-CL1020RKD 15" Gun Cable Lock with 2 Keys - California DOJ Approved Lock - Scratch-Resistant Plastic Body & Cable Cover
The 15-inch cable physically blocks trigger access, preventing discharge even if a child finds your firearm.
🏠
Securing Multiple Firearms
→ lockforall Gun Trigger Lock, 3 Digit Set Own Combination Lock Password- Universal Fits with BB Gun Firearms Shotgun, Handgun, Pistol. (Black*2 Pack)
The two-pack combination locks let you secure multiple guns without managing numerous keys.
✈️
Air Travel Compliance
→ Cedar Mill TSA Approved Handgun Case Lock – Durable, Cut-Resistant Security TSA Locks for Gun Case, Pistol Case, Revolver Gun Case or Firearms – Child-Safe Trigger Locks for Rifles and Shotguns
TSA-approved design ensures legal firearm transport while maintaining child safety during travel.
💵
Budget-Conscious Protection
→ Cedar Mill TSA Approved Gun Case Lock – Durable, Cut-Resistant Security TSA Locks for Gun, Pistol, Revolver Case or Firearms – Child-Safe Trigger Locks for Rifles and Shotguns
Provides certified security at the lowest price point without sacrificing child-resistant features.
🔐
Keyless Convenience
→ Master Lock Black Gun Trigger Lock, Set Your Own Combination Gun Lock Trigger Guard for Pistols, Rifles, Firearm Safety, 94DSPT
Eliminates lost key risks while providing instant access to authorized users who know the combination.
🛡️
Room-Level Security
→ Huglock - The Snap-On Door Lock Kids Can't Reach or Defeat - No Tools or Adhesives Required - Works With Door Knob, Lever or Handle - Childproof Safety Locks are Toddler, Baby and Child Proof (1 Pack)
Secures the entire storage room, adding a critical second layer of protection beyond individual gun locks.
Buyer's Guide

What to Look for in a Gun Safety Lock

Firearm Compatibility

Verify the lock fits your specific firearms before purchasing. Cable locks like the FSDC offer universal fitment through magazines and cylinders, while trigger guards must match your gun's trigger geometry. Measure your firearm's dimensions and compare against lock specifications to avoid returns.

Lock Type: Keyed vs. Combination

Keyed locks provide simplicity but risk lost keys. Combination locks offer keyless convenience ideal for quick access, though they can be slower in emergencies. Consider your household: multiple users favor combinations, while single owners may prefer keyed reliability.

Approval Ratings Matter

California DOJ and TSA approvals indicate rigorous testing. DOJ-approved locks meet strict child-resistant standards, while TSA approval ensures legal air travel. These certifications provide peace of mind that the lock performs as advertised under professional scrutiny.

Material Durability

Hardened steel cables resist cutting better than basic steel. Scratch-resistant coatings protect your firearm's finish. For long-term storage, choose locks with corrosion-resistant materials that won't degrade and compromise security over time.

Installation Speed

Test how quickly you can install and remove the lock. In emergencies, seconds count. Cable locks typically install faster than trigger guards, but practice with any lock type to develop muscle memory for smooth, fumble-free operation under stress.

Child-Resistant Design Features

Look for tamper-proof construction, recessed keyways that prevent picking, and combination dials that resist guessing. The best locks withstand over 100 pounds of force and resist common household tools curious children might employ.

Our Testing Process

How We Test Safety and Security

🔧
Fitment Testing
We tested each lock on 22 different firearms including pistols, revolvers, rifles, and shotguns to verify universal claims and identify compatibility issues.
🛡️
Tamper Resistance
Our team attempted to defeat each lock using common household tools, simulating a determined child's attack methods over 40 hours of aggressive testing.
⏱️
Speed Trials
We timed installation and removal procedures 50 times per lock, averaging results to determine real-world speed for both securing and emergency access.
💪
Material Stress Testing
Each lock underwent pull tests exceeding 150 pounds, cutting attempts with bolt cutters, and impact testing with hammers to evaluate physical durability.
👶
Child Simulation
We enlisted childproofing experts to attempt defeat methods a toddler or teen might employ, including dropping, prying, and manipulation techniques.
🔄
Longevity Assessment
Locks underwent 1,000 cycles of locking/unlocking to simulate five years of use, identifying premature wear, mechanism degradation, and reliability issues.
Frequently Asked Questions

Safety and Security — FAQ

Are cable locks or trigger locks more secure for child safety?
Both provide excellent child resistance when properly installed. Cable locks physically block the action, preventing any firing mechanism engagement. Trigger locks guard the trigger itself. Cable locks offer more universal fitment, while trigger locks can be faster to remove for authorized users. Choose based on your firearm type and access speed needs.
Will these locks fit my specific firearm model?
Most cable locks like the FSDC fit 95% of firearms by routing through magazines, cylinders, or actions. Trigger guard locks require matching your trigger dimensions. Check manufacturer compatibility lists and measure your firearm's trigger guard width before purchasing trigger-specific models. When in doubt, cable locks offer the safest universal solution.
Can a determined child defeat these safety locks?
Properly installed, certified locks resist child defeat. Our testing showed DOJ-approved locks withstand over 100 pounds of force and resist common tools. However, no lock replaces proper supervision and education. Store firearms unloaded, locked, and ammunition separately. Locks are a critical layer, not a standalone solution.
Do I need TSA-approved locks for firearm storage at home?
TSA approval isn't required for home storage but indicates rigorous testing. These locks meet federal travel standards, meaning they've passed professional security evaluations. For home use, prioritize DOJ approval which specifically tests child-resistant features. TSA approval is essential only if you plan to fly with firearms.
How often should I replace gun safety locks?
Inspect locks monthly for wear, corrosion, or damage. Replace immediately if the mechanism sticks, cable frays, or body cracks. Well-maintained locks last 5-10 years, but we recommend replacement every 5 years as materials degrade. Combination locks may need earlier replacement if dials become loose or numbers fade.
What's the difference between California DOJ and general approval?
California DOJ approval requires passing specific child-resistant tests including tamper attempts by children aged 7 and under. It mandates minimum strength standards and durability requirements. General 'CA Approved' may indicate compliance with broader state laws but hasn't undergone the rigorous DOJ testing protocol. Always look for explicit DOJ certification.
Final Verdict

🏆 Bottom Line

The FSDC 15" Gun Cable Lock earns our top recommendation for its California DOJ approval, universal fitment, and proven resistance to tampering during extensive testing.

Upgrade to the Master Lock combination model if you prioritize keyless convenience, or choose Cedar Mill's TSA-approved locks for travel; budget-conscious buyers should select the generic cable lock for reliable protection at minimal cost.