Picatinny rail slide / cover

A simple slide / cover for picatinny rail. STEP file included in case you want to change the length.
I made this to allow for various options on a model pistol (scopes etc) to be easily attached without needed bulky / tall clamps and adaptors.
Anything could be glues / fastened to the top of the slide and affixed to a standard Picatinny rail.
I've not added any holes for bolts, but they'd be simple to do.