I actually don't own the evictor yet my friend does and has been the only way i've been able to test this out thus far so i've got no idea if this'll work until he is back later on.
Let me know if it seems to function properly, if it doesn't revert to v1 and equip the pineapple grenade alongside the evictor that was how i initally tested the gun and it was working in that scenario specifically.