Installed this on a SAA upper with a 18" Black Hole Weaponry barrel. I'm running a SRC bcg and a Geissele Super 42 spring/buffer. Somewhat of a heavy duty system but with this compensator it runs sweet. I am saving up for a low mass bcg with an adjustable gas key (you know the one) and playing around with a lightweight buffer. With all that, it should really be a soft shooter!
Reviewed by: DAVY from BADGER STATE.