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Stealth UL50 UL RSC 50 Gun Safe

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Stealth UL50 UL RSC 50 Gun Safe

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Any Questions?

Speak with one of our experts today!

Call Us
Chat Now

Weight: 870 lbs

Inside Dimensions: 68"H x 39 ½"W x 20 ½"D

Outside Dimensions: 70"H x 42"W x 24"D (Add 3” to D for Handle)

Cubic Feet: 31.87

Gun Capacity: 50 Long Guns

Burglar Rating: RSC

Fire Rating: 1 Hour

Shipping and Refunds/Returns

Shipping and Returns/Refunds 


NOTICE:Our safes come with free curbside shipping. Your safe is dropped right on the curb with no additional cost. Further services including installation or white glove delivery comes at an additional cost, found below:

White Glove Delivery: If you're looking for white glove delivery and installation please Click Here to fill out our quote form and we'll get back to within 48 hours with an accurate quote!

Cancellations & Refunds: Mammoth Safes prides itself on having one of the best return policies in the industry.Cancel any time before your order has shipped, completely free of charge (exceptions apply, including custom made orders).

Call 1-762-216-4800 or email


When will I know my order has shipped?

As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your credit card for the purchase. As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.  If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail. If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment. If, for some reason, there is a delay in stock, we will contact you before accept your payment.

When will my order ship

If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at

No Shipping outside the lower 48 in USA.

If you have questions regarding anything below, please send an email to or call us at 1-762-216-4800

Cancellations & Refunds: At Mammoth Safes, we pride ourselves on having the best return policies in the industry. Cancel your order any time before it ships completely free of charge (exceptions apply such as custom orders, see below). 

If you have questions, please send an email to or call us at 1-762-216-4800

Cancellations (Before Order Ships)

If you need to cancel an order, please contact us as soon as possible so we can refund you in full before your order leaves the warehouse. Reach agents during business hours at 1-762-216-4800, the chat in the bottom right, or email any time. 

Cancellations of Custom Orders

Custom or made-to-order products cannot be canceled or refunded as these products are put into production specifically for your order

These units, are custom-made to your specification or created once you order. Once you place your order they start building your unit. Your warranty will guarantee you a fully functional and operational product. If it is not clear whether your order is custom or made to order, please message or call us. 

All sales are final for Custom made and Made-to-order products.

Refunds and Returns.

If you need to exchange your product, you may do so. You, as the customer, are responsible for any shipping costs throughout any returns and exchange processes. 

Not all orders are available for return once they have shipped. We order our products directly from the manufacturer. Therefore, if the manufacturer will not permit us to return a product, we cannot offer you a return. This often varies on a case-by-case basis; please reach out to us if you would like specific information on your brand and/or product. 

Due to drastically increasing LTL/freight shipping costs, any outright returns will incur a 25% cancellation fee + return shipping costs. If you are replacing the product with something else, we may be able to help you cover some of the costs depending on the product. 

Shipping Times

We promise to do our best to get your order to you as soon as possible.  We provide estimated shipping times on the product pages based upon what our suppliers and freight companies tell us, and those estimated shipping times may change or vary without notice (Due to supply chain issues, the steel mills behind on making metal, the manufacturers delayed because of the mills, the overwhelming demand on shipping, factory/warehouse and dock workers and so on). 

Order delays have proven to be unavoidable and outside of Mammoth Safe's control. While this might be frustrating, we ask you to please be patient and understanding with us in these tough times. We thank you for your business and appreciate your patience.

Please Read the Following

When you are making a purchase from Mammoth Safes, you are acknowledging the following of the Exchange Agreement:

  • I understand I am to inspect the package upon delivery, and notate and take pictures if there is any damage and provide it to Mammoth Safes within 24 hours of the product being delivered.
  • I understand that I am responsible for the cost of return shipping and the cost of a new product shipping in the case of a refund or exchange. 
  • I understand that products need to be returned unopened and unused.  An additional restocking fee may occur.
  • I understand that if my order has left the warehouse, that I am unable to receive a full refund. 
  • I understand that if I return my order once it has shipped, I will be responsible for paying any return shipping fees and restocking fees, which vary by product, but are usually around 25%. 
  • I understand that shipping date estimates outlined on product pages are estimates and may change due to factors completely outside the control of Mammoth Safes.
  • I understand and agree that I will not cancel my order or file a chargeback for an order delay or because an estimate time provided to me turned out to be incorrect due to factors outside the control of Mammoth Safes (such as manufacturing and logistical constraints of our partner companies).



Please inspect the packaging of your item(s) when they arrive, if you notice any damage, you should make note of it when signing for delivery.  If your item(s) do arrived damaged please send photos of the damage, box and SKU, along with a brief description of the damage to and we will process an insurance claim on your behalf. Photos and videos must be sent for freight damage within 24 hours of arrival or the freight damage claim will not be valid. Any punctures or visible signs of exterior damage must be reported within 24 hours. 


Warranties vary depending upon the manufacturer - see individual product pages for details. Warranty damages occur over time and from use. If an item was damaged upon arrival, and not reported within 30 days, that is not a warranty claim.


The Mammoth Safe default is that customers will be responsible for all return shipping charges or re-consignment fees caused by customer error unless otherwise stated on the product page. 

Nearly all of our products have guaranteed warranty policies - meaning that you will 100% get a fully functional, operating product that you paid for without any extra expenses incurred on your end - please see individual product pages for details. 

Brand Restocking Fee
    Gardall:    25% 
    Hollon:    15%
    SoCal:    25%
    AMSEC:    No cancellations and returns on custom made orders.
    FireKing:    25% restocking fee


You have a 30 day return window to return your product, though this time window varies from brand to brand. Contact us for a more accurate return window.

BOGO Promotions

In the event of a BOGO promotion, both items must be returned for a full refund. If one of the two items is returned, you will get a replacement of that item or a store credit for the value of that item when purchased on its own. If your order has shipped, you (the buyer) will also be responsible for actual return shipping charges and depending on the manufacturer, potentially a restocking fee. Refunds will only be issued to the original credit card that you use when placing your order.

All customers agree that they have read, understand, and agree to the terms and conditions above. 

Individual items will have a varying refund and return policies depending on the manufacturer. Please see individual product pages for details or contact


Our team of agents is here to assist you and resolve any issues. We have purposefully made our policies as fair as possible, and we believe they are the top in the industry.  We are on your team. We are immediately responsive and will do all that we can to help you out and provide the best resolution.

Given this, any customer that files a fraudulent chargeback will be held criminally liable for theft. If you have not received a product, or have an issue with a product that you did receive, please contact us, and we will help you resolve your issue. Please do not file chargebacks for issues that we can resolve together.  Thank you for shopping with us!

Contact for any questions.


Our Shipping Partners

Stealth Safes Warranty


Limited Lifetime Warranty

This safe comes with a Lifetime Burglary & Fire Warranty that covers:

✓ Break-In

✓ Attempted Break-In

✓ House Fire

+2 Year Parts & Labor Warranty on the Lock and All Components

Customer Reviews

Based on 1 review
Mammoth Safe and Stealth UL50 Review

I was in the market for a large safe and had looked at all the options in the $1500-$3000 range. I was very close to purchasing a Liberty USA 50 safe, or one of its Liberty variants from Tractor Supply, Sportsman’s Warehouse, etc. In fact, I was finishing my research on the Liberty when I discovered the Stealth brand when reading this review; In hindsight, that review is one of the most fair and accurate reviews I found on any product, and it also provided comparable alternatives. Kudo to the authors!

I’m usually pretty brand loyal and have owned a Liberty Lincoln safe for 25 years. I would still purchase the USA 50 had I not discovered the Stealth UL50. I researched all the information I could find about the UL50, with a particular focus on customer reviews and photos. I typically find customer photos are often a more accurate depiction of the actual product than marketing photos, which is why I’m also including photos in this review. However, the photos provided by Stealth of the UL50 on their website, and Mammoth’s site, are really spot on.

From a security perspective, I was looking for; thickness of the steel body and the door needed to be at least 12 gauge, the gap between the door and body needed to be minimal, and the doors needed to have a decent number/size of active bolts or bars. Lasty, I really wanted the top and bottom of the doors to have bolts/bars without having to pay over $3k to get them. The Stealth UL50 met or exceeded the Liberty USA 50 in each of these categories.

Although fire ratings are worth comparing, for me the reality is there will always damage to a certain extent, whether the fire is 1200 degrees or 1400 degrees, and I certainly won’t be checking the duration of fire with a stopwatch. Still, the fire rating of the USA 50 and the UL50 are the same.

Once you have compared a lot of safes you know there is a wide range in quality, especially when looking inside. Many appear unfinished, with rough / undressed welds, thin paint or coatings, and poor fitting shelving / interiors. Not so with Stealth, the fit and finish is very good. The reconfigurable Molle door system is also a huge bonus! Because I was looking for a safe to go in my garage, I also wanted a durable/industrial type finish and the Stealth coating is perfect for my needs. Granted, the finish may hide weld dressings and other finish details, but that and the durability is exactly why I like the Stealth coating so much. My Liberty safe is in my office and has a nice gloss finish; however, that is not what I wanted in my garage.

Frankly, I am extremely pleased with my UL50 and have zero regrets for purchasing it. However, there is one minor recommendation for improvement. Although I really like the way the power cable plugs into the safe (similar to a TV, PC, etc.), I recommend moving the cable connection from the right side to the back of the safe. Why? The current placement isn’t very stealth (yes, I did) and I prefer not seeing a cable sticking out from the side of the safe. I understand this was to enable the back of the safe to sit flush with the wall, so moving the cable connection from the center of the fight side to the very rear of the right side would also be a good option. I ended up drilling a hole through the rear wall of the safe for cable entry and then rewired the power outlet. This is a minor issue.

I have added a light kit and a dehumidifier to the safe, and I will add guns once I’m satisfied with the humidity level. Based on initial testing, it appears I will need the larger Peet dehumidifier to maintain relative humidity below 50%.

So what about Mammoth Safes? One-word summary; Wow!

I compared several companies that sell the Stealth safe when I found Mammoth. Mammoth has comparable pricing including shipping to other vendors. However, they have no tax and I also found a coupon, so when combined, Mammoth saved me several hundred dollars over the next closest company. That said; I was somewhat hesitant to order initially from Mammoth because they are a relatively new company without a lot of reviews. Thankfully there was just enough information on the web that I felt fairly confident that the advertisement was not a scam.

I really appreciate Mammoth’s efficient ordering, communication and delivery process….simply impressive! From ordering to delivery, California to South Carolina, in 6 days……impressive! The safe was very well packed, and I received it with no damage. Mammoth has done their customer service homework and it shows. Between Mammoth’s pricing, customer service and Stealth’s product quality…..I have and will continue to highly recommend both companies to anyone needing a safe!!! Well done!