#m1a2

Soldiers with the Ohio National Guard's 1st Combined Arms Battalion - 145th Armor Regiment conduct live fire training with the M1A2 SEPv3 Abrams Main Battle Tank at the Camp Ripley Training Center near Little Falls, Minnesota, on July 28th, 2025. (U.S. Army photo by Anthony Housey)

A group of U.S. Army 2LTs, assigned to Class 19-008 in Armor Basic Officer Leadership Course, 2nd Squadron, 16th Calvary Regiment, conducts an offensive movement forward toward the objective during a maneuver exercise in their M1A2 SEP v2 Abrams Main Battle Tank "BONECRUSHER" at Good Hope Maneuver Training Area, US Army Fort Benning, Georgia, January 29, 2020. U.S. Army Reserve photo by Staff Sgt. Austin Berner Source: DVIDSHUB

Note the brackets for mounting TUSK 2 reactive armor panels on the Abrams

The MBD is used to periodically realign the sights of the tank with the exact alignment of the barrel. The MRS (Muzzle Reference Sensor) on top of the barrel is frequently used throughout the day to verify the alignment, as certain conditions can cause shifts in the alignment and require the gun to be boresighted again.

U.S. Army Aggressor Company, 1-68 Armor CALFEX