U.S. Marine Corps 1st Lt. Nathaniel Lambert sights in behind a .50-caliber Special Applications Scoped Rifle during a simulated strait transit on February 20, 2019. Lieutenant Lambert is the scout sniper platoon commander with Weapons Company, Battalion Landing Team 3rd Battalion, 5th Marine Regiment, 11th Marine Expeditionary Unit (MEU). He’s aboard the San Antonio-class amphibious transport dock ship USS John P. Murtha (LPD 26) in the Pacific Ocean. The Marines and sailors of the 11th MEU are conducting routine operations as part of the Boxer Amphibious Ready Group in the eastern Pacific Ocean. (U.S. Marine Corps photo by Lance Cpl. Israel Chincio)

Watch Marines train with the M107 .50-caliber Scoped Rifle below: