The only currently existing component is the 1st Battalion, 103rd Field Artillery Regiment (1-103rd FAR), a unit of the Rhode Island National Guard.

With the pacification of the Barbary states, the PMCA continued as a chartered command of the Rhode Island Militia.

About 1850, the PMCA acquired the use of a castle-style armory, which is known as the Benefit Street Arsenal, from the Providence Light Infantry.

The first time was at the outbreak of the war when it served from 18 April to 1 August 1861, as the 1st Rhode Island Battery under the command of Captain Charles H. Tompkins.

The second time was from May to August 1862, when it served as the 10th Rhode Island Battery under the command of Captain Edwin C. Gallup.

The Benefit Street Arsenal not only served as the mobilization site for the PMCA but, also, for all eight batteries of the 1st Rhode Island Light Artillery Regiment, which was organized in 1861.

As a result, the PMCA is considered the "Mother of the Rhode Island Batteries" – as is stated on a plaque affixed to the Benefit Street Arsenal.

This association, composed of past and honorary members of the Providence Marine Corps of Artillery, was organized on 21 January 1874.

Its object was to "afford occasional opportunities to revive pleasant memories of the past, to unite in sympathy graduates separated by many years, and to secure for the active corps the benefit of their interest, influence, and strength".

The battery did not serve overseas but was stationed at the Quonset Point militia training camp in North Kingstown, Rhode Island.

[4] Light Battery A was expanded on 15 June 1917, to form the 1st Separate Battalion, Rhode Island Field Artillery.

The unit was reorganized and redesignated on 20 August 1917, as the 1st Battalion of the newly formed 103d Field Artillery Regiment, an element of the 26th Division.

During the Second World War, the 103rd and 169th Field Artillery Battalions served with the 43rd Infantry Division in the Pacific Theater.

Captain Elwood Joseph Euart of the regiment was the only member of the 103rd lost in the sinking of the U.S. Army transport ship USAT President Coolidge on 26 October 1942.

Reorganized and redesignated 1 March 1949 as the 169th Antiaircraft Artillery Automatic Weapons Battalion and assigned to the 43d Infantry Division.

In February 1978 the 103d Field Artillery was mobilized, along with the entire Rhode Island National Guard, to provide emergency service in response to the Great Blizzard of 1978, which paralyzed the state with over 3 feet of snow.

Elements of the 1st Battalion, 103d Field Artillery Regiment were mobilized for service in Iraq and Kuwait during Operation Iraqi Freedom.

From January 2004 to April 2005 batteries A and B of the 1-103d served on active duty and supported combat operation in Iraq for nearly 13 of the 15-month mobilization.

As a result, the 1st Battalion, 103d Field Artillery was reassigned to the 197th Field Artillery Brigade (New Hampshire Army National Guard) in its operational chain of command and to the 43rd Military Police Brigade (Rhode Island Army National Guard) in its administrative chain of command.

It holds a long term lease on the historic Benefit Street Arsenal which houses numerous artifacts that commemorate the history of the 103d Field Artillery.