Nerf Rival rail to Picatinny rail cover/adapter

thingiverse

This is a part that slips onto attachment rails found on Nerf Rival blasters and converts it to accept Picatinny attachments. Most Picatinny rail attachments use a bolt passing between the grooves of the rail to help mechanically secure attachments to the rail(in addition to clamping forces). Print two of these and place them on the rail with a gap between them so the bolt on your attachment can still pass between the grooves on the rival rail.