" Dissapator " upper

[Mh-47e]

Have often thought I would like to have a " Dissapator " upper. Does any one have any experience or thoughts ? Thanks for your insight !

[Split66]

use the search button for "dissipator upper"

seems there are a number of threads. like https://www.m4carbine.net/showthread.php?t=97236&page=2 Good luck