The Marines' ACV is getting a big 30mm cannon.

Marines Poised To Get Their 30mm Cannon-Armed Amphibious Combat Vehicle

Armed with a 30mm Bushmaster cannon, the ACV-30 will provide the U.S. Marine Corps with its largest direct-fire gun.

By Thomas Newdick

1:10 PM EDT May 2

The future of the Harvest Hawk armament kits for Marine Corps KC-130J tanker/transport aircraft are increasingly uncertain as focus shifts to planning for future high-end conflicts.

Marine KC-130Js May Lose Their Missile-Firing Harvest Hawk Kits

The future of armed Marine KC-130Js is in question as a fight in the Pacific brews, but new electronic warfare capabilities are on the horizon.

By Joseph Trevithick

7:50 PM EDT May 1

Testing of DARPA's Manta Ray UUV

Manta Ray Underwater Drone Even More Enormous Than We Thought

New images of the giant underwater drone prototype show it completing in-water testing off Southern California earlier in the year.

By Oliver Parken

5:29 PM EDT May 1

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