The Mark II medium repeating blaster cannon was a blaster cannon manufactured by Merr-Sonn Munitions, Inc.

Merr-Sonn Munitions, Inc. Organization Manufacturers

, it was mounted on a tripod and could be operated by a single gunner

Gunner Miscellaneous Roles

.
Mark IIs deployed by the Rebel Alliance

Rebel Alliance Organization Rebel Alliance

to defend Echo Base and were used against Imperial snowtroopers

Imperial Snowtrooper Organization Galactic Empire Military

, since it did not have the power to punch through the armor of the AT-ATs

AT-AT Ground Vehicle Vehicles

.