Safe Accessories & Ammo Storage · Sargent & Greenleaf
Sargent & Greenleaf 6120 Electronic Safe Lock
3.4/5 Best Safe Score (how we score)
I list S&G's long-running 6120 for owners who want nine codes and a 1-9 minute time delay: a motor-driven, auto-relocking square bolt rated for 225 lbs, and keypads that plug in.
Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
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Who it's for
- Best with a time delay in Best Gun Safe Lock Replacement – 5 Retrofit Locks for Your Own Safe: For an owner with an older 6120 who wants a like-for-like swap, or who wants a time delay; locksmiths report older 6120s failing after years of use, and the listing says the master reset code must be added before the default code is changed.
What we like
- 9 codes (1 master, 8 users) and a 1-9 minute time delay (S&G)
- Motor relocks and deadlocks the square bolt; withstands 225 lbs of bolt end pressure (S&G)
- A High Road owner fixed a failing S&G keypad by unplugging it and plugging in a new one
What to know first
- A Northwest Firearms locksmith says older 6120s have a high failure rate after around 7 years
- Amazon showed only a few units left when I checked
Product details
| Brand | Sargent & Greenleaf |
|---|---|
| Manufacturer | Sargent and Greenleaf |
| Model | 6120 |
| Part number | 6120 |
| Item weight | 3.5 pounds |
| Color | Satin Chrome |
| Lock | Electronic keypad, 9 codes (1 master, 8 users), management reset code (S&G) |
| Lock body | Auto-relocking square bolt, motor-driven (S&G) |
| Listing | UL-listed Type 1 (Liberty Safe S&G page) |
| Other | Time delay 1-9 minutes, penalty lockout, EMP-resistant (S&G) |
| Power | 9V battery keypad |
| Warranty | Two-year limited (S&G) |
Top rows from the Amazon listing; the rest from the maker pages we checked.
About this item
- One million codes to choose from. One master code and eight user codes.
- Does NOT have a Master Reset Code unless one is added to the lock after installation and before the default Master Code (123456#) is changed for the first time.
- Deadlocking, motor driven bolt withstands over 225 lbs. of end pressure.
- UL Listed Electonic Safe Lock.
- Penalty lockout feature shuts the lock down for five minutes of four or more incorrect codes are entered in a row to deter random code entry attempts.
From the product's Amazon listing, as of Nov 7, 2026, 7:59 PM UTC. The seller writes this text, not us, and Amazon may change it.
What owners say
Summarized from 2 owner discussions and review pages we read.
Praise
- An owner swapped a failing S&G keypad by plugging in a new one and had no problems for three years
- A Northwest Firearms owner says one battery lasts years on his safe
Complaints
- One owner's 6120 kept eating batteries because a bare wire was grounding out
- A locksmith reports a high failure rate after around 7 years
Sources: The High Road: Electronic safe lock issue (LaGard), read in full · Northwest Firearms: S&G Lock Keypad Intermittent (read in full)
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