Ever seen a silent machine gun? Check this out!
Machine Gun Mike puts the HK MP5SD through its paces at the range and discusses how a silent machine gun is so quiet.
Watch the video to see how it works.
Well, there you have it, a silent machine gun.
While you do give up some muzzle velocity with this gun, the mild report will allow you to shoot without ear protection and in situations where a loud sonic crack is unwanted (midnight pest control?).