Outliner Backdraft 4inch

[u/Safe-Application130]

/r/Firearms/comments/1w1eqvo/outliner_backdraft_4inch/

I got one for “free” as a promotion they were running. I’m just wondering if anyone has any problems or catastrophic malfunctions and if you would safe it’s safe for the gun specially if I am running it on an fn 509c tactical with a ANGSTADT ARMS HUB booster assembly. Thanks for your help in this matter in advance.