alot of g36 rumors are just that, rumors...I been told alot of rumors about melting and cracking this and thats...to be honest, there are some very reputable people out there that have actually had some weird experiences, but the issues seem to be more the exception and not the norm so take alot of those stories with a grain of salt. There are many people out there who have had problem free experiences with their sl8/g36 guns...and i also want to note that many or the problems I have heard about relate more to the aftermarket parts used to make the conversions or are related to full auto operation of the actual g36.