if i recall i seen a youtube video where a guy trys to break the gun by hooking up many big battery's and feeding thousands and thousands of 1.2 grain. the cool part is the gun keep running fune and nothing wrong with it after
oh heres the link:
YouTube - Aftermath Broxa Torture Part One
and part 2:
YouTube - Aftermath Broxa torture continues
based on a few hours of research and constant reviews the broxa would be the gun i chose because the lycoon's stalk breaks. If you get the feed issue with the broxa some people say layering tape around the mag and siliconing the heck out of the guns base seems work most of the time
though i don't own the gun nor tested it both seem to do the trick its clearly up to you
cheers!!