Gee David, you've got it all wrong. First, english language definitions are very relevant to laws because of "due process". When I quoted the dictionary, I had a hunch you would fall for that.
In addition, SB23 is very important because this was the only bill to pass that revises the zip gun code you are referring to which is:
12020. (a) Any person in this state who does any of the following is punishable by imprisonment in a county jail not exceeding one year or in the state prison:
(1) Manufactures or causes to be manufactured, imports into the state, keeps for sale, or offers or exposes for sale, or who gives, lends, or possesses any cane gun or wallet gun, any undetectable firearm, any firearm which is not immediately recognizable as a firearm, any camouflaging firearm container, any ammunition which contains or consists of any flechette dart, any bullet containing or carrying an explosive agent, any ballistic knife, any multiburst trigger activator, any nunchaku, any short-barreled shotgun, any short-barreled rifle, any metal knuckles, any belt buckle knife, any leaded cane, any zip gun, any shuriken, any unconventional pistol, any lipstick case knife, any cane sword, any shobi-zue, any air gauge knife, any writing pen knife, any metal military practice handgrenade or metal replica handgrenade, or any instrument or weapon of the kind commonly known as a blackjack, slungshot, billy, sandclub, sap, or sandbag.
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If you read the code further down to section 10, you will find the SB23 provisions. Again, these are:
(10) As used in this section, a "zip gun" means any weapon or device which meets all of the following criteria:
(A) It was not imported as a firearm by an importer licensed pursuant to Chapter 44 (commencing with Section 921) of Title 18 of the United States Code and the regulations issued pursuant thereto.
(B) It was not originally designed to be a firearm by a manufacturer licensed pursuant to Chapter 44 (commencing with Section 921) of Title 18 of the United States Code and the regulations issued pursuant thereto.
(C) No tax was paid on the weapon or device nor was an exemption from paying tax on that weapon or device granted under Section 4181 and subchapters F (commencing with Section 4216) and G (commencing with Section 4221) of Chapter 32 of Title 26 of the United States Code, as amended, and the regulations issued pursuant thereto.
(D) It is made or altered to expel a projectile by the force of an explosion or other form of combustion.
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Notice, David, that it says a zip gun must meet all of the following. First, a tannery lower is not imported. Second, you'r the manufacturer so if your intent is to finish it into a rifle, then it is NOT A ZIP GUN. Plus, self manufactured is exempt from taxes. Again, a tannery lower is NOT A ZIP GUN. I don't know how you can read these four criterias as applicable to 80% receivers.
I've noticed that your replies to my posts are usually negative, short on though and logic, designed to end discussions, and done with ardor. Either you are not that bright, or you have a problem with posts authored by stator. I think it is the later. Therefore, you can kiss my Navy arse.