Originally Posted by enigmahack
Did you add a different barrel or silencer modification? 650mm seems pretty long to me ;-)
I haven't measured mine, but it was my understanding that I had a 500mm/510 inner barrel *shrugs*
Looks like I'll have to get the measuring tape out lol
edit: I found out that the default barrel length internally is 498mm, so in theory 495-505mm should be just fine.
I've got a silencer.
Without it, the barrel stick out a good 5 inches.