Description
The Master Lock 99DSPT is one of those simple pieces of gear that quietly earns its keep. It's a 14-inch cable lock built to render a firearm inoperable by threading through the action, so the slide or bolt can't close on a live round. The cable is braided steel with a vinyl coat, and it feeds through the chamber or ejection port on a long gun, or through the action and magazine well on a semi-auto pistol. On a revolver, you run it through the barrel or a couple of chambers. Once it's locked, tug on it to confirm it's seated, and you've got a gun that can't be fired until you unlock it.
What Makes the 99DSPT Worth Keeping Around
The padlock end uses a 1-5/16 inch laminated steel body, which is the same construction Master Lock has leaned on for decades because it holds up. Inside is a 4-pin tumbler cylinder to resist picking, plus a dead-locking, anti-rap mechanism that keeps the lock from popping open under a sharp hit. The cable itself measures 5/64 inch in diameter and is designed to resist cutting from casual attempts. It's a lot of security packed into something that fits in a drawer or range bag.
Keyed Different and Built to Last
This model is keyed different, meaning it comes with its own unique set of keys rather than matching other locks. That's handy if you want separate keys for separate guns, and each lock ships with two keys so you've got a spare from day one. The vinyl covers on both the lock body and cable aren't just for looks either, they keep the metal from scuffing up a nice finish or a wood stock while everything is threaded together.
A cable lock like this pairs well with a safe or lock box for layered storage, and it travels easily when you're heading to the range or hauling a gun somewhere. Master Lock backs it with a Limited Lifetime Warranty, which tells you they expect it to outlast plenty of use.
Key Specifications
- Manufacturer: Master Lock
- Manufacturer Part Number: 99DSPT
- Model: Cable
- UPC: 071649050732
- Product Type: Gun Lock
- Cable Length: 14 in (36 cm)
- Cable Material: Braided steel, vinyl coated
- Cable Diameter: 5/64 in (2 mm)
- Lock Body: 1-5/16 in (33 mm) laminated steel
- Shackle Diameter: 7/16 in (11 mm)
- Cylinder: 4-pin tumbler
- Security Features: Dead-locking, anti-rap mechanism
- Keying: Keyed Different
- Color: Black/Gold
- Warranty: Limited Lifetime
What’s Included
- Master Lock 99DSPT cable gun lock
- Two keys
Frequently Asked Questions
How does the 99DSPT cable lock secure a firearm?
You thread the 14-inch cable through the firearm's action, such as the ejection port and out through the chamber or magazine well, then lock the cable end back into the padlock body. This physically blocks the slide or bolt from closing on a round, so the gun can't be loaded or fired. Always confirm the firearm is unloaded first, then tug the lock to make sure it's seated before storing it.
What guns will the Master Lock 99DSPT work with?
The 14-inch cable is long and flexible enough to fit most handguns, shotguns, and rifles. On semi-autos you run it through the action and magazine well, on long guns through the ejection and loading ports, and on revolvers through two chambers or the barrel. It's a versatile lock rather than one built for a single firearm type.
What does keyed different mean for this cable lock?
Keyed different means this lock comes with its own unique key set that won't match other locks. It's a good setup if you want individual keys for individual firearms. Each lock ships with two keys, so you have a backup right out of the package.
Is a cable lock enough on its own for storage?
A cable lock is a solid layer of protection that keeps a firearm from being loaded or fired, and it works great for transport or preventing unauthorized use. For the best security, many owners pair it with a safe or lock box and store the keys and ammunition separately. Think of it as one dependable part of a larger storage plan.





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