Quote Originally Posted by russian View Post
Guys see those cans on the end. You can't suppress 5.45 very well. That is the only reason for 7.62x39.
Appears one guy has a 5.45 rifle with a can on it in the 3rd picture. That or whatever muzzle device he is using goes half-way up his front sight. I was also pleasantly surprised how well my SLR104 ran suppressed. Much quieter than I expected it to be, especially with a 30 cal suppressor.