Not mine, but it is gun porn, from the book "No Easy Day: The Firsthand Account of the Mission That Killed Osama Bin Laden".
a Heckler & Koch MP7 with suppressor (top); a highly modified M79 40mm grenade launcher, a.k.a. the “pirate gun” (middle); and a Heckler & Koch 416 assault rifle with a ten-inch barrel and suppressor (bottom).