Two videos sent in by Airsoft Taiwan with the first one which should be an interest for AAC300 users as they have a sound suppressor which does the job a bit at the foreend as shown in decibel test the conducted. Its heavy suppressor which weighs at about 500grams so it consider that factor when your AAC becomes front heavy when you install it.

The second video is the AST AAC300 Combo Pack which is comprised of the AAC300 Blackout front end kit and the M4 Forced Receiver and you get the the New Age Lock Pin and Steel Forward Assist for free.