Step 1: Handle.
Built 4 of the first picture.
After the 3 pic add the remaining 2 Pieces you built at pic 1
Step 2: Butt and the Stock/ Slide and Trigger!
7-10 Support/ Stock
Rest is putting together the knex
Step 5: The top of the gun.
Step 6: Chamber
Pic 1 Use it if your haveing trouble building.
Rest is the mag entrance and some other crap.