an extended magazine is cosmetic? a forward grip is cosmetic? a bump stock is cosmetic? and its a real term, i was going off memory before but heres the penal code so you can learn somthing.
PENAL CODE - PEN
PART 6. CONTROL OF DEADLY WEAPONS [16000 - 34370] ( Part 6 added by Stats. 2010, Ch. 711, Sec. 6. )
TITLE 4. FIREARMS [23500 - 34370] ( Title 4 added by Stats. 2010, Ch. 711, Sec. 6. )
DIVISION 10. SPECIAL RULES RELATING TO PARTICULAR TYPES OF FIREARMS OR FIREARM EQUIPMENT [30210 - 33690] ( Division 10 added by Stats. 2010, Ch. 711, Sec. 6. )
CHAPTER 2. Assault Weapons and .50 BMG Rifles [30500 - 31115] ( Chapter 2 added by Stats. 2010, Ch. 711, Sec. 6. )
ARTICLE 1. General Provisions [30500 - 30530] ( Article 1 added by Stats. 2010, Ch. 711, Sec. 6. )
30515.
(a) Notwithstanding Section 30510, “assault weapon” also means any of the following:
(1) A semiautomatic, centerfire rifle that does not have a fixed magazine but has any one of the following:
(A) A pistol grip that protrudes conspicuously beneath the action of the weapon.
(B) A thumbhole stock.
(C) A folding or telescoping stock.
(D) A grenade launcher or flare launcher.
(E) A flash suppressor.
(F) A forward pistol grip.
(2) A semiautomatic, centerfire rifle that has a fixed magazine with the capacity to accept more than 10 rounds.
(3) A semiautomatic, centerfire rifle that has an overall length of less than 30 inches.
(4) A semiautomatic pistol that does not have a fixed magazine but has any one of the following:
(A) A threaded barrel, capable of accepting a flash suppressor, forward handgrip, or silencer.
(B) A second handgrip.
(C) A shroud that is attached to, or partially or completely encircles, the barrel that allows the bearer to fire the weapon without burning the bearer’s hand, except a slide that encloses the barrel.
(D) The capacity to accept a detachable magazine at some location outside of the pistol grip.
(5) A semiautomatic pistol with a fixed magazine that has the capacity to accept more than 10 rounds.
(6) A semiautomatic shotgun that has both of the following:
(A) A folding or telescoping stock.
(B) A pistol grip that protrudes conspicuously beneath the action of the weapon, thumbhole stock, or vertical handgrip.
(7) A semiautomatic shotgun that does not have a fixed magazine.
(8) Any shotgun with a revolving cylinder.
(9) A semiautomatic centerfire firearm that is not a rifle, pistol, or shotgun, that does not have a fixed magazine,