Home /Gun Safe Upgrade Kits /Gun Safe Upgrade Kit: #3
SKU GSU-20GSP-KIT3-BLK

Gun Safe Upgrade Kit: #3

$259.00$369.99SAVE $110.99
In stock — ready to ship
Upgrade KitBase - Gun Safe Upgrade Kit Only
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Ships in 3 business days
Trusted by Professionals
Military & LE proven
Secure Checkout
256-bit encrypted
90-Day Buy-It-Back
Risk-free guarantee
Fast Shipping
Ships in 3 business days
Trusted by Professionals
Military & LE proven

Transform your traditional gun safe into a highly customizable storage solution with SecureIt’s patented CradleGrid™ Technology. Choose between two kit options to suit your needs:

  • Base Kit: Includes 20 Grid Panels, 10 Cradles, 5 Stock Bases, and all necessary hardware, providing secure storage for up to 10 long guns. Customize further with additional accessories (sold separately) to organize handguns, magazines, ammo, and gear.

  • Pro Kit: Includes everything in the Base Kit, plus a tailored accessory kit thoughtfully designed to match the upgrade and safe size. The Pro Kit enhances customization for optimal performance and provides a clear understanding of how CradleGrid works. Enjoy a discount on the included accessories with the Pro Kit. (See "What's Included" for full details)

Installation is straightforward, with clear instructions for removing old safe interiors, measuring and cutting plywood backing, and mounting the kit. Most installations take a few hours, and our video tutorial, “How to Upgrade Your Gun Safe,” guides you through each step.

Tools Required:
  • Power screwdriver
  • Medium Phillips Screwdriver
  • Saw (if cutting your own plywood)
  • Hammer
  • Paintbrush / roller if painting plywood
Learn More: Watch the install video

Why Choose the Gun Safe Upgrade Kit 3?

The Gun Safe Upgrade Kit 3 modernizes your gun safe, combining the durability of traditional designs with modular versatility. Perfect for collectors, sport shooters, or home defenders, it ensures your firearms and gear are securely stored, easily accessible, and organized exactly how you want.

  • True Capacity: 10 long guns
  • CradleGrid: Back panel offers unlimited customization with accessories.
  • Straight-Line Access: Our military-inspired design offers fast, hassle-free access eliminating damage to guns, optics, and other accessories.
  • Organizational Awareness - at a quick glance you know everything is in place
Fits safes with interior width 28 7/8" and 34 1/2"
Capacity 10 Long Guns
Shelf load capacity 120lbs per shelf
Molded components meet standard PAR 870-20 (Army Museums, Historical Artifacts)

Base Upgrade Kit:

PRO Upgrade + Accessory Kit:

The Gun Safe Upgrade Kit is in stock and ready to ship:

Orders ship within 3 business days. Tracking information will be provided once your order has shipped.

Please also be advised that while we will make every effort to process and ship your order in a timely manner, we are unable to guarantee specific delivery dates and times. Please wait the full 7 allotted business days after order placement before reaching out to support to report an issue.

For product and shipment questions, please contact support@secureittactical.com

California ResidentsWARNING: This product can expose you to chemicals including Carbon Black (airborne, unbound particles of respirable size) which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

Why It Stands Out

Designed With Purpose: The Details That Matter

Transform your traditional gun safe into a highly customizable storage solution with SecureIt’s patented CradleGrid™ Technology. Choose between two kit options to suit your needs:

  • Base Kit: Includes 20 Grid Panels, 10 Cradles, 5 Stock Bases, and all necessary hardware, providing secure storage for up to 10 long guns. Customize further with additional accessories (sold separately) to organize handguns, magazines, ammo, and gear.
  • Pro Kit: Includes everything in the Base Kit, plus a tailored accessory kit thoughtfully designed to match the upgrade and safe size. The Pro Kit enhances customization for optimal performance and provides a clear understanding of how CradleGrid works. Enjoy a discount on the included accessories with the Pro Kit. (See "What's Included" for full details)

Installation is straightforward, with clear instructions for removing old safe interiors, measuring and cutting plywood backing, and mounting the kit. Most installations take a few hours, and our video tutorial, “How to Upgrade Your Gun Safe,” guides you through each step.

Tools Required:

  • Power screwdriver
  • Medium Phillips Screwdriver
  • Saw (if cutting your own plywood)
  • Hammer
  • Paintbrush / roller if painting plywood

Learn More: Watch install video

See It In Action

Trusted by Professionals

Built in the armory.
Proven in your home.

SecureIt doesn't build ordinary gun safes. We engineer professional weapon storage systems — drawing on military heritage and armory-grade innovation to give serious gun owners speed, security, and confidence under pressure.

Military Heritage

SecureIt's roots run deep in U.S. military weapon storage — the same design discipline that secures armories now protects your home.

Armory Innovation

Patented CradleGrid™ technology was born from outfitting professional armories, then refined for real-world defensive use.

Department of Defense Background

Trusted to engineer weapon storage systems for defense and law enforcement operations where failure is not an option.

Leadership in Storage

A leader in modular firearm storage — proving that smart engineering beats sheer size and weight every time.

Built in the armory.
20+
Years of armory R&D
100%
U.S. engineered
No.1
In modular storage

Outgrow Ordinary.

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