Thanks for the response. I have tried using 110gr supersonic ammo and 220gr subsonic ammo. I purchased a heavier buffer spring and that hasnt worked either. I'll be checking the gas port tonight and making sure it is lined up properly. I assembled the gun myself and this isnt my first build. I'm positive the gas port is fitted correctly but it never hurts to double check. I'm really trying to find cheaper ways to modify the gun without having to modify an expensive barrel like someone stated above.
I'll keep everyone updated. If there are any other suggestions please feel free to post.