Yes, a gun people have wanted forever. The Light Fifty. Also known to some as Inorigun for the obvious reasons. (If it isnt, then the joke wouldnt be funny to you anyway)

A really weird... not-quite-a-bamboo who gets stronger the more battles the echelon has been in. Has 3 shots per battle, and the final shot is pretty strong, but it's VERY awkward to use. Can be used to kill stuff early (she was actually better at it than Kar98 then) such as say, Gundam removal, but these days with the existence of early charge bamboo rifles + M200, she isn't quite as top notch at it as she once was. She still works though.

Potentially better for nodupers than people who spam the superpopular rifles.