I believe him a 100%.
When they tried to force action after a shooting (the typical political ambulance chasing), he did the bump stock thing which was to take the political pressure off and show action, but not really do anything. He was willing to take the heat as they tried to force him to go further on the issue, but he refused.
His actions speak loudly on this issue and he’s not like many others that pretend to support you but then throw you under the bus once in office. Trump supports our 2nd amendment rights.
He was probably told bump stocks are garbage.
Binary triggers work much better, IMHO.