USH Fortress Completes NATO STANAG 4569 Level IV Certification for New Composite Armor System

UsH Industries is proud to announce that its Fortress Defense Systems division has successfully completed rigorous independent third-party ballistic testing, achieving full NATO STANAG 4569 Level IV certification for the IRONVEIL composite laminate system our most advanced passive armor solution to date.

A New Standard in European Armor

Developed over 36 months under Project IRONVEIL, the new laminate system represents a significant advance in passive protection technology. By combining proprietary ceramic compounds with a next-generation polymer matrix, our engineers have achieved NATO Level IV ballistic protection at approximately 34% reduced weight compared to conventional steel solutions of equivalent rating.

Testing was conducted at an accredited independent facility in Germany, with oversight from a NATO-designated technical authority. The system was subjected to standardized ballistic threats including 14.5×114mm armor-piercing rounds and 155mm artillery fragmentation simulation, passing all performance thresholds defined under STANAG 4569 Level IV requirements.

"Weight reduction is not a luxury in defense it is a tactical multiplier. A lighter vehicle moves faster, carries more, and survives longer. IRONVEIL delivers protection without the penalty."

Procurement Implications

The certification positions USH Fortress as an eligible direct supplier to European NATO member state defense procurement programs. Several Ministries of Defense have been briefed on the system through official channels, with formal tender submissions anticipated in the second half of 2025.

The IRONVEIL system is designed for vehicle integration including wheeled APCs, MRAPs, and light reconnaissance platforms as well as fixed infrastructure applications such as command post hardening and critical asset protection.

Next Development Phase

With Level IV certification secured, the Fortress team will advance IRONVEIL into a modular integration program, developing vehicle-specific kits for NATO-standard platforms. Simultaneously, a counter-UAS integration variant is under evaluation as part of our broader Project GRIDLOCK research initiative.

• NATO STANAG 4569 Level IV certified
• 34% weight reduction vs equivalent steel
• Vehicle and fixed-installation variants available
• European procurement submissions planned H2 2025