Northrop Grumman will produce the PGK E5, the next-generation version of the M1156 Precision Guidance Kit (PGK), featuring anti-jamming capabilities designed to support U.S. Army and allied artillery operations in GPS-degraded environments.
The PGK E5 converts existing 155 mm high-explosive projectiles into GPS-guided weapons, providing precision indirect-fire capability while using existing artillery systems.
PGK E5 Adds Anti-Jam Capability
The upgraded PGK E5 incorporates advanced anti-jam technology designed to counter emerging electronic threats and maintain accuracy in contested battlefield environments.
According to Northrop Grumman, the new system maintains the same reliability, form factor and user experience associated with the existing PGK, allowing it to be integrated with 155 mm artillery without changes to its basic fit and configuration.
Recent testing in GPS-degraded environments demonstrated accuracy exceeding both threshold and objective requirements, according to the company.
Northrop Grumman said the increased precision can help reduce collateral damage and the number of rounds required per engagement, while supporting warfighter survivability.
Dave Fine, Vice President, Armament Systems, Northrop Grumman, said the company is working with the U.S. Army to ensure the PGK E5 can support maneuver forces operating in GPS-degraded environments.
Production Underway
Northrop Grumman said production of the PGK E5 is already underway at its facility in Plymouth, Minnesota, with first deliveries expected in early 2028.
The system is compatible with existing 155 mm projectiles and fielded howitzers, which means it can be introduced without major system changes or extensive retraining.
The company said this compatibility is intended to support rapid fielding and deployment as GPS jamming becomes increasingly prevalent.
