I designed this barrel off of edhrien's original TKO barrel. I got tired of all the weight being up at the front of the barrel due to the suppressors size (and me printing everything with too high an infil). Besides being lighter it will also fit in this knockout holster https://www.thingiverse.com/thing:4737294 which is my favorite holster in pretty much the whole hobby.
TKO_Slim_barrel.stl | 264.2KB |