Looked at a used Sons Of Liberty Gunworks AR yesterday for what seems to be a good price $1200 (gun looks new) at a local pawn shop/gun store . Supposedly 14.5 barrel with the NOX muzzle device from SOLGW pinned and welded on to get it to 16 inches. Any drawbacks/issue to consider other than the process to remove to replace it with something else in the future? I did read that the device would need to be installed correctly based on the gas port exhausting gas to one side or the other based on the shooter being left or right handed.