Better Nerf Jolt!

Ah, the Jolt. A fistful of jolly good fun. Pew*reload*pew*reload*pew!

But it lacks a decent sight. there is blue nodge withing the orange nozzle, but it disappears when aiming.

Glue a tiny piece of plastic onto that nodge. Done. Precise for hundrets of centimeters!

Since you have your glue ready, why not use it to mount a conveniently shaped piece of metal as a clip for a second round?