The primary weapon used by the Confederacy during the bombardment was artillery.

The primary weapon used by the Confederacy during the bombardment of Fort Sumter was artillery. Confederate forces utilized a range of cannons to launch an intense barrage on the fort, which was strategically positioned in Charleston Harbor. This artillery attack began the morning of April 12, 1861, and continued for 34 hours. The effectiveness of the artillery, including various types of cannons, demonstrated the Confederacy's military capabilities and their determination to assert control over Fort Sumter. This bombardment not only marked the start of the American Civil War but also highlighted the significance of artillery in warfare during that era.