Gg&g mossberg 930 sling & flashlight mount combo - GG&G Mossberg 930 Sling & Flashlight Mount Combo

Once you understand that the Mossberg 930 has two different barrel diameters and find the place on the web site that tells you how to measure, the mount installs easily and works as expected. As always, take care with the magazine spring when disassembling. Don't ask how I know.