Strategic Sciences has introduced a Multi Function Muzzle Device fitted to SIG M7 rifles, including one with a 13 inch barrel. A related MFMD 6.8 unit appears on a SIG M7C that uses a 10.3 inch barrel.

The company website describes the device as a single design that addresses flash, recoil, and sound together. It reports first round flash cut by as much as 99 percent, recoil reduced by as much as 60 percent, and sound held under 140 dB on every listed system.

A further variant labeled MFMD 6.8 2.0MG is shown on a SIG M250 machine gun with a 16 inch barrel.