http://www.airsoftcore.com/postt10792.html
http://www.hotspotairsoft.com/hsaforum/viewtopic.php?t=19
http://www.arniesairsoft.co.uk/?filnavn=/reviews/ca_m15/cam15_review.htm
http://www.airsoftgi.com/information.php?osCsid=db53161c2278a5e3928a32516f6ac788&info_id=1
http://www.freewebs.com/smmairsoftguide/M15A4.htm
http://www.createphpbb.com/phpbb/viewtopic.php?t=170&mforum=silverblade
http://www.airsoftplayers.com/armalite/armalite_2.asp