SB Linebacker G-87 MSGL

The Linebacker G-87 Multiple-Shot Grenade Launcher (MSGL) by Steiner-Bisley is a 40mm magazine-fed grenade launcher.

The Linebacker uses a unique horizontally-mounted loading system. The magazine is mounted above the barrel, and the grenades are pushed forward by spring pressure and arrive at the end of the magazine, then are fed as a single row into a spiral feed ramp and rotated 90 degrees, aligning with the chamber.