Why Bullet-Resistant Barriers Are Critical

UL 752 ballistic standards are widely recognized for rating the effectiveness of bullet-resistant materials. Within this system, UL 752 Level 7 is specifically designed to resist multiple shots from high-powered rifles such as the AR-15 or other military-style assault rifles. Unlike lower levels, which are tested primarily with handguns, Level 7 panels provide ballistic protection against rifle-caliber fire.

It is important to understand the distinction between bullet-resistant and bulletproof. No material is entirely "bulletproof" under every condition. UL 752 Level 7 bullet-resistant barriers are engineered to resist penetration from specific threats, giving facilities dependable protection, but they cannot guarantee immunity against every weapon or scenario.

Security for critical environments, such as substations, government buildings, and defense facilities, depends on barriers that meet these rigorous standards, Key threats mitigated by Level 7 bulletproof glass and panels include:

• Assault Rifles

• Semi-Automatic Rifles

• Handguns

• Long-Range Ballistic Threats

Applications Of Level 7 Bullet-Resistant Fiberglass

UL 752 Level 7 bullet-resistant barriers are most commonly used to stop multiple shots from assault rifles with muzzle energies of 1158-1402 foot-pounds (1570-1901J). This level of defense is essential in environments where elevated risks exit.

Typical applications include:

• Grid Safety & Substations. Preventing damage to critical infrastructure in high-threat areas.

• Military Installations. Protecting against modern rifle fire in active defense environments.

• Government Facilities. Embassies, courthouses, and federal buildings requiring higher security measures.

• Commercial Security. Data centers, banks, and other facilities where valuable assets must be protected.

While lower-level panels such as UL 752 Level 3 are frequently used in schools, retail environments, or offices, or offices, Level 7 ballistic protection is recommended when rifle-caliber threats are likely or when longer-range risks are present.

Technical Specifications

• Nominal Thickness: 1-1/8 in.

• Nominal Weight: 11.7 lbs per sq. ft

• Ammunition Tested: 55 grain (3.56 g) 5.56 mm rifle (full metal copper jacket with lead core).

• Minimum Velocity: 3,080 (939 mps).

• Panel Sizes: 3' x 8', 3' x 9', 3' x 10', 4' x 8', 4' x 9', 4' x 10', 5' x 8', 5' x 9', 5' x 10'.

Every panel is non-spalling, non-conductive, and designed to capture the bullet, preventing ricochets or dangerous fragmentation. This ensures the highest level of reliability in real-world installations.

UL 752 Level 7 Specifications

Application

Most commonly used as a protection barrier against multiple shots from a military assault rifle, such as the M-16, and the like, with muzzle energy of 1158-1402 foot-pounds (1570-1901J).

Nominal Thickness

1 - 1/8"

Nominal Weight

11.7 lbs per square foot

Minimum fps

3080

Velocity m/s

939

Grain

55

(g)

3.56

No. of Shots

5

UL 752 Paragraph

4.9

Ammunition Tested

55 grain (3.56 g) 5.56 mm rifle full metal copper jacker with lead core, minimum velocity of 3080 (939 mps)

Panel Sizes

3' x 8' 4' x 8' 5' x 8'

3' x 9' 4' x 9' 5' x 9'

3' x 10' 4' x 10' 5' x 10'

Level 7 Bullet Resistant Performance Level

• UL752 Standard for Bullet Resisting Equipment - Level 7 Paragraph 4.9

• One Hour Fire Rating Per ASTM E119-98

• Class IV Forced Entry Protection Rating per ASTM F1233-98

• Sound Insulation Rating per ASTM E413-87

Additional Information

Other Products Available

Our Bullet Resistant Fiberglass Panels are manufactured at all 8 Levels of UL752 Standards and NIJ0108.01 specifications.

UL 752 LEVEL 7 BENEFITS

• Non-Spalling

• Non-Ricocheting - captures the bullet

• Non-Conductive

• Fist Level offering rifle protection

• Seamless integration

• Effective delay against forced entry

• Nontoxic materials - no formaldehyde

• Low wicking - preventing buildup of mold

• Provides protection against AR-15 semi-automatic weapon