Problem with mesh orientation

gI have a problem with meshes being imported into ue4 from modo


This is my gun orientation in modo.

be3a4b852a3c14f77b4969e99db99c1af905f029.jpeg
and this is the orientation with muzzle effect preview and import option on the left

gun_ue4_socket.PNG
this is what the socket preview looks like dont mind the actual position of it

gun_ue4_play.PNG
when i press play though the orientation is completely different and the muzzle effect points in the wrong effect also