I created an additional iron-sight for my Nerf Rival, as the factory version was lacking. I thought I might as well share it in case others have found this irksome in relation to their own copy of the toy.

• The part slides onto the pre-existing Picatinny Rail (if that's what it is ;) ), and is held on tightly by friction. No glue or adhesive is needed.

  Note that the strength of the clamp may weaken over time.

• The .3mf file contains two plates: One with the word “Rival” and one without. The piece with the Rival emblem will probably need supports and re-orienting to avoid scarring the face.