The RCH 155 (Remotely Controlled Howitzer 155) is a self-propelled artillery system, which utilizes 8×8 chassis of armored personnel carrier and 155 mm Artillery Gun Module (AGM). This artillery system was developed by Krauss-Maffei Wegmann as a private venture. It was introduced in 2014 and initial firing trials took place during the same year. The Boxer has to prove it can deal with recoil forces without stabilization, but stabilization concepts can be added if needed to retain shoot and scoot and 360 degree firing capability. The Boxer-RCH 155 system could be used as an upgrade option for countries with existing Boxer fleets. The Boxer Artillery Gun Module (AGM), is now being referred to as the Remote Controlled Howitzer 155 (RCH 155). When deployed this would supplement, not replace, the legacy KMW PzH 2000 155 mm/52 calibre SPH.
As of 2019, firing trials with the turret traversed front and to its sides were carried out at WTD 41 proving ground and were successful without the use of stabilizers. The trials also demonstrated the ability to fire an 8-round burst and redeploy under 90 seconds, and carry out multi-round simultaneous impact missions. The combination of the Boxer vehicle with AGM became known as Remote Controlled Howitzer 155 (RCH 155) due to the turret module being remote controlled. Additionally, a remote weapons station with a .50 caliber machine gun has been fitted on the roof. Trials demonstrated that it can come into action, carry out an eight-round fire mission, and then redeploy in less than 90 seconds. In addition, it can carry out multi-round simultaneous impact (MRSI) fire missions.
The Remotely Controlled Howitzer 155 is based on the technology of a combat-proven PzH 2000 self-propelled howitzer, which is in service with Germany and some other countries. The RCH 155 provides the same performance of the PzH 2000, but is cheaper to build, has reduced crew and is significantly lighter. It was developed as a supplement to the PzH 2000 howitzer where heavier weaponry is not available, not recommendable, or too expensive. The Boxer RCH 155 is operated by a crew of just 2 men. This artillery system is highly automated and unmanned. RCH 155 has fully automatic loading system, which loads both projectiles and charges. This artillery system is armed with a 155 mm/L52 howitzer from the PzH 2000 howitzer. It has a rate of fire of 6-8 rounds per minute. It is also capable of multiple-round simultaneous-impact firing.
This artillery system is compatible with all standard NATO 155 mm projectiles. Essentially this artillery system can be adapted for a lighter gun, such as a shorter 155 mm/L39 or even 105 mm gun. Maximum range of fire is 30 km with standard projectile, 40 km with base bleed projectile and 56 km with rocket-assisted projectile. A total of 30 rounds of ammunition and are carried for the main gun. A lifting system is installed at the front of the turret. It allows the crew to reload magazine from outside of the vehicle. The Remotely Controlled Howitzer 155 has an advanced fire control system. It receives target data via radio or datalink. Though in case of emergency or failure this artillery system can be loaded and fired manually.