My First Knex Rapid Fire Semi Automatic Gun

 This step is where you will build the barrels for the gun. Just follow the pictures, it should be pretty easy.
Add a red connector to half of the barrels, as seen in the pictures.

 This step is where you build the body of the gun. Again, the pictures should explain everything.

 This step will show you how to put the barrels on the body.

 Congratulations! You have finished the gun! Now, time to have some fun!