this is my knex mac 10, don't mind my english, i'm dutch so hope you like and enjoy it (if you understand).
I got my inspiration from the tmp/mp9 from: The Red Book of Westmarch, so thank you guys
Step 1: Step 1: the Frame
Step 2: Step 2: Internals #1
Step 3: Step 3: Internals #2
Step 4: Step 4: Internals #3
Step 5: Step 5: Finishing the Gun
Step 6: Step 6: the Mag
Step 7: Step 7: the Firing Pin and the Rubberbands
voor jorn made it!