[adam01364]

The difference between the regular C9 barrel and a Comp barrel is the comp is 1/2" longer. (3.5 inches vs 4 inches) The barrel is not ported, BTW. It's all about the compensator.

This is what a comp barrel looks like; notice the notch. The CF 380 comp barrel looks exactly the same and the same compensator is used on both.

 

[Bob1961]

wonder why its not threaded. 1st post btw hey all

 

[Rachgier]

wonder why its not threaded. 1st post btw hey all

Because HP had always gone with clamp on brakes/comps until Strassel bought out his partners in 2015.