i was looking at car-15 flash hiders and have noticed three different versions.
1)4 1/2"
2)5 1/2"
3) reverse
i can figure out the diff between the 4.5 an 5.5, but what is the reverse flashhider.  i like the looks of the reverse better, and want to what it is and how it works.  i have a marlin camp 9 and want to shorten the barrel to increase bullet performance.  i would like to attach a long flash hider to bring it back up to 16".

The "reverse" flashhider is used on a 16" barrel, and slides over the front 4" before screwing on, giving the appearence of a CAR barrel without losing the velocity of the 16".

thanks for the info.  i almost bought one, now i know it is not what i am looking for.  thanks again.