[mattf]

The Mor-Ryde step on our 2019 Montana does not have the locking mechanism either. If you have the gas struts like we do, make sure that step folds in tightly against the door frame. On our first trip out as we got ready to leave a campground I pushed in the steps, pushed the door shut, only to find the door wouldn't even close. I found that the step did not fit tightly against the door frame. When I closed the door the screen door edge on the hinge side was hitting the metal stop plate on the step that's supposed to fit tightly against the door frame. That one attempt to close the door bent the screen door hinge, throwing it completely out of alignment. Fortunately Keystone covered the repair under warranty. New screen door and step, but of course the new step had to be the same as the old according to Keystone, so we didn't get the locking one. Just a word of caution.