BudsGunShop.com - Attaching Stock?

Matthew, you will need a stock adapter for the type of stock you intend to use. CZ Custom has some listed to get you started at : https://czcustom.com/cz-scorpion-evo-3-s1.html

If you add a "Stock" it becomes an NFA SBR, and you'll have toy Form 1 the gun. you can add a Brace from SB Tactical, they have a couple made just for the scorpion

Remove the rear plate by pressing down the detent that holds it on and slide it up off the gun, then slide stock or AR stock adapter onto where plate used to be