The breaching grenade from Merr-Sonn was an explosive device employed to remotely detonate locked doors, which prevented the need for a soldier to manually attach an explosive and risk being shot by the enemy. As a mountable accessory, the breaching grenade could convert common blaster rifles, for example the DC-17, into a grenade launcher with ease. To enable Omega and Delta squads to gain access to a residence in Hadde and find insurgents who had launched a missile at the Republic base from the city, Clone commando RC-1136 utilized a Merr-Sonn breaching grenade.