Even if you can replace the lower receiver. The upper receiver is where the marking are to tell if your cz is prohibited or not. Technically even if you replace the lower receiver with a vz lower your rifle marking will still say it's a prohibited. Correct me if I'm wrong on this.Don't know if this has been asked, and im relatively unfamiliar with the family of rifles, but will CZ components fit in a VZ lower? If so, could you order in a bunch of VZ lowers since they are still unrestricted? Apologies if i missed something glaringly obvious