this is the most simple knex machine gun on instructables, at the moment i am making this. it only gots 4 barrels and doesnt contain lots of pices like al the other knex machine guns

Step 1: Materials

you need the next materials for the machine gun
5 grey rods
10 yelow rods
20 blue rods
13 white rods
4 green rods( ammo)
5 yellow conectors
3 white conectors
8 bleu connectors
6 purple conectors
12 orange connectors
20 grey conectors 2 way
12 grey conectors 1 way
4 rubber bands
2 grey stoppers
2 beige conectors

Step 2: Barrels

first you need do build 4 of these

Step 3: Barrel Rotator

then build this

Step 4: Rotating Rod

the next thing to build is the middle rod

Step 5: Fire Mechanisme

this is the fire mechanisme,

Step 6: Construction

now build the constuction

Step 7: Asambling

asamble the pices you have build as shown in the pictures

Step 8: Loading the Gun

to load the gun you pull back the blue rod in the barrel, place an grean rod in front of it and place the conector in front of that, repeat this four times and your gun is ready to fire