This is some footage of me shooting an M16 testing a suppressor overhauled by our shop. We replaced the baffles with a stainless steel stack and added a a three lug quick attachment mount.
This is a piece of video of an M16 in 45ACP caliber. You will notice that the first round sounds louder than the rest. This is due to a "lucky" shot by Scottie where he hit a tree and the bullet turned making a bunch of noise.