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Locksmithing/Replacement key for Sentinel Gun Safe


How can I get a replacement key for my Sentinel Gun Safe model GCB-14F?


I'm assuming that you have a Stack-On Safe, "Logo - Sentinel", model GCB-14F.

First thing is that these containers are NOT considered to be a safe, they are considered to be a "locking CABINET".  In order to be a safe, it has to have a combination lock capable of 1,000,000 possible combinations, AND have at least 3 locking bolts of 1/2" or greater diameter, controled by a separate handle.

You have two options, you can try contacting the manufacturer, or you can have a locksmith from a local lock or safe company fit a key or replace the lock.  As the safe originally came with two keys, it would seem that you have already lost one or more keys, this would indicate that the possiblity exists of someone else, possibly having keys to your container.

Rather than getting a replacement key, I would have your lock replaced.

Assuming that the manufacturer is Stack-On, their contact info is:

Stack-On Products Co.
Attn.: Customer Service Department
1360 North Old Rand Road
Wauconda, IL 60084
Phone: 1-847-526-1611
Toll Free: 1-800-323-9601
Hours: 8am - 4:30pm C.S.T.

You should be able to have a duplicate key made at most locksmith shops, and/or have them replace the lock on the cabinet.

Hope this helps,


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Terry V. Andreasen (Andy)


Safe and Vault related Questions; Antique Safe Repair and Restoration; With over 42 years in the Safe & Vault industry, if I can't answer your question I know where to get the answer. Current Project: Restoration of an Ely Norris Cannonball Safe from the early 1900's. Will answer Safe & Vault related questions concerning age, value, restoration, moving, opening & repairing, parts, operation and history. Note: It is not my intention to teach you to open safes or to provide information which may aid in the unlawful opening of a safe. I will not give out drill points or information which I deem inappropriate.


44 years in the Safe & Vault Industry. Owner and Service Manager for one of the largest Safe & Vault companies on the West Coast. Graduate of Lockmasters Safe Lock Servicing, Safe lock Manipulation and Safe Deposit Lock Courses. Graduate of Locksmith Institute. Certified Instructor for the California Locksmith Association teaching Basic and Advanced Lock Servicing, Basic Safe opening and Repairing. Factory Trained by AMSEC, LORD Safes, LeFebure, Mosler, KabaMas, LaGard and Sargent & Greenleaf Author of "The Coffee Table Guide to Antique Safes".

SafeCrackers International and the National Antique Safe Association Safe & Vault Technicians Association (SAVTA)

The Coffee Table Guide to Antique Safes

Graduate of Locksmith Institute 1972 Graduate Lockmasters Safe Lock Servicing 1974 Graduate Lockmasters Safe Lock Manipulation 1975 Graduate Lockmasters Safe Deposit Lock Servicing 1985 Instructor Certified - California Locksmith Association - 1985 Factory trained by AMSEC, MAJOR, STAR, Johnson-Pacific, Kaba-MAS, Allied-Gary, ISM, Lord, Brown Safe, EXL, Mosler, Diebold.

Awards and Honors
2009 - 2015 - Listed in AllExperts Top 50 Experts. All Expert Categories - Safes & Security Containers, Locksmithing, Antique Safes. Retired US Army Chief Warrant Officer (CW4), with 39 years of total service. With numerous awards from Vietnam, Desert Storm and Operation Iraqi Freedom. US Navy - 1971-1981 US Army Reserve 1984-2013 US Army Retired

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US Secret Service, FBI, BATF, Local Law enforcment agencies, Diebold, Hamilton Pacific, Red Hawk Int., Chubb International, Bank of America, Wells Fargo Bank, Mechanics Bank, El Dorado Savings Bank, many Credit unions and smaller banks. McDonalds, Togos, BurgerKing, TacoBell, Carls Jr. FoodMaxx, SaveMart, Lucky's, Albertson's, Raley's, Safeway, NobHill, Bell Markets, PW Markets. Great America, Century Theatres, Cinemark Theatres, UA Cinemas, and many homeowners and small businesses. Provide warranty service for lock and safe manufactures. Service Area is Northern California (Fresno to Oregon and Western Nevada)

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