What fuze can be added to 155mm Artillery M795 HE and M549A1 HERA rounds to boost precision?

The Precision Guidance Kit (PGK) is specifically designed to enhance the accuracy and precision of conventional artillery rounds, such as the 155mm M795 High-Explosive (HE) and M549A1 High Explosive Rocket Assisted Projectile (HERA) munitions. By adding the PGK to these rounds, the artillery can significantly reduce the circular error probable (CEP), which is a metric for assessing the precision of the weapon.

The PGK incorporates global positioning system (GPS) guidance and fin control to help steer the projectile to its intended target with improved accuracy. This advancement is particularly beneficial for minimizing collateral damage while achieving the desired effects on target, which aligns with modern military engagement strategies that prioritize precision-strike capabilities.

In contrast, the other options, while related to precision munitions, do not specifically enhance conventional artillery rounds in the same manner. The APKWS (Advanced Precision Kill Weapon System) transforms unguided rockets into precision-guided munitions, which does not directly apply to traditional artillery shells. Excalibur is a precision-guided artillery round developed from the outset to be a guided munition rather than a modification of a standard round. APMI (Advanced Precision Mortar Initiative) is focused on mort