Brand | Sargent & Greenleaf |
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Special Feature | Keyless Features, Lockable |
Lock Type | Square Bolt |
Item Dimensions LxWxH | 7.75 x 4.25 x 4.63 inches |
Material | Brass, Metal |
Color | Black |
Finish Type | Black |
Included Components | safe, battery |
Controller Type | Ring |
Shape | Round |
Item Weight | 2.25 Pounds |
Control Method | Touch |
Manufacturer | Sargent & Greenleaf |
Part Number | 6730-100 |
Item Weight | 2.25 pounds |
Product Dimensions | 7.75 x 4.25 x 4.63 inches |
Item model number | 6730-100 |
Batteries | 1 9V batteries required. |
Is Discontinued By Manufacturer | No |
Finish | Black |
Item Package Quantity | 1 |
Special Features | Keyless Features, Lockable |
Batteries Included? | No |
Batteries Required? | No |
Warranty Description | Two Year Limited Warranty |
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Sargent & Greenleaf S&G Model 6730-100 Mechanical Safe Lock Kit
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Enhance your purchase
Brand | Sargent & Greenleaf |
Special Feature | Keyless Features, Lockable |
Lock Type | Square Bolt |
Item Dimensions LxWxH | 7.75 x 4.25 x 4.63 inches |
Material | Brass, Metal |
About this item
- Make sure this fits by entering your model number.
- ENHANCED ATTACK RESISTANCE: Model 6730 includes a relock trigger proven to thwart punch attacks, and a patented torque adjuster that withstands repeated abuse. Tested against expert manipulation for over 20 hours, Model 6730 delivers security you can trust.
- PREMIUM CONSTRUCTION: From the solid brass lock bolt and locking arms to a machined brass wheel center, Model 6730 uses the best materials to deliver top performance—including the ultimate non-slip wheel.
- COMBINATION CHANGEABLE: With three key-changeable metal wheels, Model 6730 supports up to 1,000,000 unique combinations and allows simple combination changes at the lock.
- TRUSTED SECURITY: For a replacement gun safe lock that gives enhanced attack resistance, Model 6730 sets the standard and has earned the trust of consumers and business owners worldwide.
- ALL-INCLUSIVE KIT: Group 2 Combination Lock, D300 Dial, Dial Ring, and Mounting Hardware.
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Product Description

Regarded as the industry standard for Group 2 safe locks, Sargent and Greenleaf’s Model 6730 mechanical safe lock makes it easy to upgrade home gun safes. Designed to provide enhanced attack resistance and durable performance, Model 6730 delivers proven mechanical security.
- COMBINATION CHANGEABLE: With three key-changeable metal wheels, Model 6730 supports up to 1,000,000 theoretical combinations and allows simple combination changes at the lock.
- ATTACK RESISTANT. We built Model 6730 with a patented torque adjuster and integrated relock trigger to resist punch attacks, auto-dial attacks, and a wide range of other threats.
- PROVEN SECURITY. Model 6730 carries multiple internationally-recognized certifications, including UL Group 2, Vds1, A2P A/E, and EN1300 Class A.
- ALL METAL DURABILITY. Constructed of solid brass dual lever locking arms and a machined brass wheel center, Model 6730 provides the ultimate non-slip wheel and delivers long-lasting performance.
- ALL-INCLUSIVE KIT. Get everything you need in one complete kit: Group 2 combination lock, D300 dial and dial ring in black and white finish, and mounting hardware.

Setting Global Standards for Group 2 Safe Locks
Backed by 160 years of industry experience, our Model 6730 lock not only meets Group 2 standards, but also sets the industry standard for advanced security features and premium materials.
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Proven SecurityDesigned to deter threats including punch attacks and auto-dialing, Model 6730 meets the highest Group 2 standards. |
Metal ConstructionSolid brass lever, wheel center, cam, bolt, spindle, and lock bolt give each Model 6730 a proven non-slip wheel and maximum durability. |
Combination ChangesThree key-changeable metal wheels support 1,000,000+ combinations. Easily manage security at the lock. |

Easy to Install or Retrofit
Model 6730 locks are easy to install and retrofit in most residential gun safes. Designed to fit the industry standard mounting footprint, Model 6730 locks don’t require additional boltwork or mounting screw location changes. Model 6730 locks are universally handed and reversible. Available with an easy-to-read black and white dial, Model 6730 locks incorporate familiar left-right-left dialing and offer a key-changeable lock design for easy management.
If you need assistance with this installation, please contact a local Safe Technician.

Enhanced Security
Advanced security features including a patented torque adjuster, built-in relocker, and solid brass lock bolt make Model 6730 one of the most trusted Group 2 safe locks on the market. Designed to withstand a wide variety of threats, including punch attacks, auto-dial attempts, and more, Model 6730 delivers reliable security and long-term performance.

Premium Construction and Durability
Using the best materials—including solid brass components designed to resist attacks and slippage and stand up to daily wear-and-tear—Sargent and Greenleaf constructed our Model 6730 locks for durability and longevity. With three all-metal wheels and a patented torque adjuster, Model 6730 locks maintain optimal tension for greater security and performance throughout the life of the lock.
Upgrade your home gun safe with the Group 2 safe lock that defines the industry. Choose Sargent and Greenleaf’s Model 6730 to enhance your home gun safe with proven security and durability.
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Customer Rating | 4.5 out of 5 stars (423) | 4.7 out of 5 stars (348) | 4.6 out of 5 stars (14) | 4.7 out of 5 stars (5) |
Price | $94.95$94.95 | $21.00$21.00 | $179.88$179.88 | $185.06$185.06 |
Sold By | MBA USA | Kingman Security | Kingman Security | Kingman Security |
Color | Black | Silver | Black and White | Gold Finish |
Product information
Technical Details
Additional Information
ASIN | B002EDF466 |
---|---|
Customer Reviews |
4.5 out of 5 stars |
Best Sellers Rank | #121,188 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #599 in Home Safes & Safe Accessories |
Date First Available | June 23, 2009 |
Warranty & Support
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Reviewed in the United States on December 30, 2022
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Reviewed in the United States 🇺🇸 on December 30, 2022


In my particular case, I have fitted this lock to two different gun safes, both of which were purchased from TSC. The first safe was a Cannon model 756030 that came with a Securam electronic lock. While this lock has never given me any problems in the 5 years I've owned the safe, I have always worried about it. The installation of the S&G 6730 on this safe was about as straightforward as could be expected, since the electronic solenoid module inside the safe has the same "footprint" as the 6730 lock body. Literally just unbolt the old and bolt in the new (same screw thread). The electronic keypad is attached door by two screw studs that, after being removed, are exactly the right spacing and thread to mount the 6730 dial ring. After that, follow the instructions to cut the dial spindle (which is pretty straightforward), put the relocker plate back on the bolt body, and you are done. Took me all of 45 minutes, going slow and careful.
The second safe I have installed this lock on was a Winchester TS-9-EFL. This particular safe came with an unidentified electronic lock, which may or may not be a LaGard (I've read that it is in some forums). In any case, after just over a year this lock decided to suddenly not work, in the form of half the numbers on the keypad not responding. I finally got it working again after removing the battery and figuring out how to fully discharge a capacitor (and, a lot of stress). At that point, I just left the safe unlocked and ordered this 6730 kit from Amazon. The installation on this safe, however, turned out to be nothing like the Cannon. On the Winchester the electronic solenoid module was a completely different footprint from the 6730 lock body, there were no existing holes on the door face for mounting the 6730 dial ring, and the location of the pass through hole for the wires (through which I wanted to put the dial spindle) wouldn't put the 6730 lock body in the right place to interface with the linkage inside the safe door. However, after studying things for a while, I finally ended up drilling and tapping 4 holes inside the door to mount the lock body, 2 holes on the outside of the door to mount the dial ring, used the existing wire pass through hole for the spindle, and fabricated a new metal piece that I bolted to the internal linkage to serve as the interface with the 6730 bolt. This took me about 4 hours to complete, including head-scratching time figuring it all out. In any case, this was a considerably more complex installation, certainly "possible" (at least for the person with the proper tools) but a lot more involved.
So, trying to wrap this up...this S&G 6730 lock kit seems like totally the way to go, if like me you have had problems or just worry about an electronic lock. Just be prepared that there might be more or less work involved depending on what safe you are trying to install it on, and lastly, don't even try to use the included instructions for setting the combination.
As mentioned in a previous review. If you wish to retrofit a Costco's Heritage 14 Gun safe you will need to do a little extra work. It is not plug and play but not hard. You will need to drill & tap two additional holes on the outside of the safe for the dial ring and you will need to tap two (top 2 holes) of the 4 holes inside the safe for the lock body. Items you will need are:
• Magnetic screwdriver as it will be very helpful
• 1/8 drill bit for the outside holes
• 8-32 tap for the outside holes
• ¼-20 tap for the two existing inside holes
• A center punch for setting a drill spot on the outside holes (helpful but not mandatory)
• Vise grip for holding the emergency lock in place (helpful but not mandatory)
Step by step may be helpful - First open the safe and remove the paneling on the inside of the door (undo 8 phillips screws). Then lift up on the digital keypad to remove it from the door. Unscrew the 2 phillips screws on the back of the keypad and disconnect the cable from the lock body inside the safe from the keypad (the cable that runs into the keypad just unplugs after you remove the back). Now go back into the inside of the door and use your vise grips to lock the emergency lockout in the up position (as outlined in the YouTube video). Now unscrew the front white plate and set it to side. unscrew the lock body from the door and remove it. From there follow the directions and the video drilling and tapping where needed. If you’re handy and have everything together it should take you about an hour. May be helpful to remove the door from the safe. To do this just pull the door straight up.
If you watch the video and follow the directions it should be fairly easy. Instructions are very good and the quality of the components is excellent. I would add one thing that is different; the combination lock is not like you high school locker lock. To open you go right 4 times > Left 3 times > right 2 times > and then you turn it about halfway to unlock. Not really an issue but defiantly different and something you will need to get used to. Hope this all helps.
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