Remote Anti-Armor Mine System

The Remote Anti-Armor Mine System (RAAMS) are two types of 155 mm howitzer projectiles containing nine anti-tank mines each.

[1] Each round contains either the M718 or M718A1 (RAAM-L) mines, which have a self-destruct time over 48 hours; or the M741 or M741A1 (RAAM-S) mines, with a self-destruct time of approximately 4 hours.

Both projectiles are used with the M577 or M577A1 Mechanical Time and Superquick (MTSQ) fuze, which triggers the ejection mechanism of the mines above enemy territory after a preset time.

[2] These mines can be delivered at ranges from 4 to 17.6 kilometres (2.5 to 10.9 mi) from the artillery battery position using the M109, M198, or M777 howitzers.

[3] The United States sent about 10,200 RAAMS rounds to Ukraine between the start of the Russian invasion of Ukraine in February 2022 and January 2023.