 This magazine holds 32 projectiles and will take any of the current M107, M549, M483 projectile family.To transfer the 155 mm projectile to the breech, the magazine hoist collects the projectile, which is pushed forward onto the shell transfer arm; and this arm, which is pivoted at the trunnions, swings into line with the cradle extension.Here the projectile is transferred to the ready-use tray.