Bullet Resistant Windows – UL 752 Ballistic Glass & Frame

Complete Bullet Resistant Window with Glass & Adjustable Wall Frame

Protect secure areas with a complete bullet resistant window system from Liberty Shielding. Each window includes both the ballistic-resistant glazing and heavy-duty window frame, providing a complete solution for installation into new or existing walls.

Available in UL 752 Level 3 and Level 8 ballistic protection, these windows are designed for commercial, government, security, financial, educational, and other applications where protection against firearm threats is required.

Unlike a glass-only product, this system includes an adjustable frame designed for walls from 4-1/4" to 8" thick. The frame can be installed after drywall is complete, making it an excellent option for both new construction and security upgrades to existing buildings.

Select your required ballistic protection level and window dimensions above to calculate your price and order online.

UL 752 Bullet Resistant Window Protection Levels

Liberty Shielding offers two standard ballistic protection levels for online ordering:

UL 752 Level 3 Bullet Resistant Window

Designed to provide ballistic resistance against handgun threats represented by the .44 Magnum under the applicable UL 752 test requirements.

Glass Specifications:

  • Protection Level: UL 752 Level 3
  • Nominal Thickness: 1.25"
  • Weight: 13 lbs. per sq. ft.
  • Light Transmission: 77%
  • U-Value: 0.83
  • Ballistic Threat: .44 Magnum Lead Semi-Wadcutter Gas Checked
  • Test: 3 shots

UL 752 Level 3 is commonly selected for applications requiring enhanced protection against handgun threats.

UL 752 Level 8 Bullet Resistant Window

For applications requiring protection against higher-powered rifle threats, our UL 752 Level 8 bullet resistant window provides substantially greater ballistic protection.

Glass Specifications:

  • Protection Level: UL 752 Level 8
  • Nominal Thickness: 2.4"
  • Weight: 27 lbs. per sq. ft.
  • Light Transmission: 57%
  • U-Value: 0.60
  • Ballistic Threat: 7.62mm x 51 / .308 Military Ball
  • Test: 5 shots

Level 8 ballistic glazing is designed for higher-security applications where protection against rifle fire is required.

Bullet Resistant Glass Sizes

Our bullet resistant glass and window frame assemblies are custom manufactured to the dimensions selected when ordering.

Available Size Range:

  • Minimum Size: 12" x 12"
  • Maximum Size: 96" x 60"
  • Dimensional Tolerance: ±0.17"

Enter your required dimensions above to calculate the price for your custom bullet resistant window.

Adjustable Bullet Resistant Window Frame

Every window includes a frame designed to simplify installation while providing a complete finished opening.

Frame Specifications

  • Fits wall thicknesses from 4-1/4" to 8"
  • Can be installed after drywall is complete
  • Suitable for new construction and existing walls
  • Designed to accommodate the supplied ballistic glazing
  • Complete glass-and-frame solution

Rough Opening

The required rough opening is:

Order Size + 1"

For example, a 24" x 24" bullet resistant window requires a 25" x 25" rough opening.

This provides the necessary installation clearance around the window assembly.

Where Are Bullet Resistant Windows Used?

Bullet resistant windows are commonly installed anywhere employees, occupants, customers, or critical infrastructure require additional protection from firearm threats.

Common applications include:

  • Banks and credit unions
  • Government buildings
  • Police and law enforcement facilities
  • Courthouses
  • Schools and educational facilities
  • Security offices
  • Reception areas
  • Transaction windows
  • Guard booths and security checkpoints
  • Pharmacies
  • Cash-handling areas
  • Utility and infrastructure facilities
  • Commercial and industrial buildings
  • High-security facilities

Because the frame can be installed after drywall, these windows are also well suited for retrofitting existing buildings with ballistic protection.

Bullet Resistant vs. Bulletproof Windows

The terms “bulletproof window” and “bulletproof glass” are commonly used when searching for ballistic glazing, but bullet resistant is the more accurate terminology.

No glazing should be considered resistant to every firearm, ammunition type, or ballistic condition. Bullet resistant glass is instead designed and tested to resist specific ballistic threats.

The appropriate UL 752 protection level should therefore be selected based on the ballistic threat requirements for your project.

Ballistic Glass Construction

Bullet resistant glazing uses a multi-layer construction engineered to absorb and disperse the energy of a ballistic impact.

Unlike conventional safety glass, ballistic glazing is specifically designed to prevent penetration from designated firearm and ammunition threats when tested according to its applicable ballistic rating.

The result is transparent protection that allows visibility through the secured opening while providing substantially greater protection than conventional architectural glass.

Performance & Safety Standards

Depending on the selected configuration, the glazing incorporates performance characteristics associated with:

  • UL 752 ballistic resistance
  • ANSI Z97.1 safety glazing
  • CPSC 16 CFR Part 1201, Categories I & II
  • ASTM C1036
  • ASTM C1349

Ballistic performance is dependent on the specific protection level and complete glazing configuration selected.

Installation Requirements

Proper installation is critical to the performance of any ballistic glazing system.

Recommended glazing clearances include:

  • Face Clearance: 1/8" per side
  • Edge Clearance: 3/8"
  • Bite: 1"

The surrounding wall construction must also provide an appropriate level of ballistic protection. Installing a bullet resistant window into an otherwise unprotected wall does not make the complete wall assembly bullet resistant.

Care & Cleaning

To protect the optical surfaces of your ballistic glazing:

  • Clean using a soft microfiber cloth.
  • Use a dry or lightly dampened cloth for routine cleaning.
  • Avoid abrasive pads, scrapers, or aggressive cleaning materials.
  • Use particular care when cleaning exposed polycarbonate surfaces, which are more susceptible to scratching than conventional glass.

Optional Bullet Resistant Glass Configurations

Additional configurations are available for specialized architectural and security requirements, including:

  • Tinted ballistic glass
  • One-way mirror ballistic glass
  • Low-iron ballistic glass
  • Custom ballistic protection levels

Specialty configurations may require additional fabrication time or ordering assistance.

Frequently Asked Questions

What is a UL 752 bullet resistant window?

UL 752 is a ballistic-resistance standard used to evaluate the ability of building components and materials to resist specified firearm and ammunition threats. Different UL 752 levels correspond to different ballistic threats.

What is the difference between UL 752 Level 3 and Level 8?

Level 3 provides protection against the specified .44 Magnum handgun threat, while Level 8 is designed for the specified 7.62mm x 51 (.308) rifle threat. Level 8 requires a significantly heavier and thicker ballistic glazing construction.

Does this product include the window frame?

Yes. This product includes both the bullet resistant glazing and the window frame. The adjustable frame accommodates wall thicknesses from 4-1/4" through 8".

Can these bullet resistant windows be installed in an existing wall?

Yes. The frame is designed so that it can be installed after drywall, making it suitable for retrofits and security upgrades as well as new construction.

What rough opening do I need?

Make the rough opening 1" larger than the ordered window size in both width and height.

For example:

24" x 24" order size = 25" x 25" rough opening.

Can I order a custom-size bullet resistant window online?

Yes. Select your ballistic protection level and enter the required window dimensions above. Your window will be manufactured to the selected dimensions.

Are bullet resistant windows completely bulletproof?

“Bulletproof” is a commonly used term, but bullet resistant is more accurate. Ballistic glazing is designed to resist specific firearm and ammunition threats according to its tested protection level. It should not be assumed to provide protection against threats beyond its specified rating.

Does the surrounding wall also need ballistic protection?

Yes. A ballistic window only protects the window opening. If the complete area requires ballistic protection, the surrounding walls, doors, frames, and other penetrations should be designed to provide the required protection level.

Freight Delivery & Unloading Requirements

Customer is responsible for unloading all freight shipments. Prior to delivery, you must arrange for a forklift, loading dock, or other suitable equipment and personnel capable of safely unloading the shipment. Freight carriers are not responsible for unloading material from the truck unless a specific unloading service has been arranged in advance.

Failure to have the proper equipment, personnel, or facilities available to receive and unload the shipment is not grounds for refusing delivery, cancellation, or return.

The customer is responsible for any additional charges resulting from re-delivery, missed delivery attempts, storage, detention, or changes to the delivery address after the order has shipped.

By placing and proceeding with an order, the customer acknowledges and accepts these delivery requirements and agrees to the Liberty Shielding Terms & Conditions available at:

https://shop.libertyshielding.com/terms-and-conditions/

Order Bullet Resistant Windows Online

Order your custom bullet resistant window and frame assembly directly from Liberty Shielding. Choose between UL 752 Level 3 or Level 8 protection, enter your required dimensions, and add the window to your cart.

Each system includes the ballistic glazing and adjustable wall frame, giving you a complete custom-sized solution ready for installation.

Select your protection level and enter your window size above to see your price and order online.

Still Not Sure? Talk With Our Experts For Answers To Your Questions.

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