7.5 inch AR gas blow back

[Navy Gunner]

Hi, running a 7.5 inch AR and i'm getting some gas blow back. I'm using a regular big latch charging handle. Will a gas buster charging handle solve my problems or do I need to do something else?

Thanks

 

[Jamie]

lots of easy fixes I ran a bead of gasket maker on my charging handle ( spray upper receiver contact point with pam non stick) let it set up over night