Blaster rifle

Im going to make a star wars “blaster rifle” (The Definitive How To - Blaster Rifle). But im going to take it two steps further.

  1. Im goin to make it a “sniper rifle” so it will be long.
  2. Im going to make a lazer pen inside it. so when you pull the trigger it shines the lazer out the front.

Dones anyone have ideas?

REMEMBER i need to be able to change the battries.

thanks