Seconded, Iowa GTG.

CA is not really GTG at this time for self-manufactured AR pistols.  Factory made ones must have been on the "Roster" at the time of sale.  Haven't looked at the roster lately but I never recall seeing AR-based pistols on it.  The presence of a Bullet-Button does NOT make an AR pistol legal in CA.  The previously quoted 12XXX Penal Code sections do not exist anymore.  They have all been changed to 3XXXX series.

Based on Penal Code section 32000, subdivision (a) generally prohibits the manufacture of “unsafe handguns,” as they are defined under section 31910.  This includes the ridiculous micro-stamping requirement, drop test certification, a loaded chamber indicator, magazine disconnect, and more unbelievable requirements.  Unless the pistol satisfies all of these requirements, the semiautomatic firearm is an “unsafe handgun” under section 32000, and therefore cannot be self-manufactured.

As stated previously,  Bullet-Button mag releases have no bearing whatsoever on the legality of a self-manufactured pistol in CA.

PLEASE TAKE NOTICE that meeting the State’s firing and drop safety requirements requires the submission of three sample firearms to a Department of Justice Approved Laboratory for testing and approval.  If the engraving and testing requirements are not met within the limitations imposed for validation of a Department of Justice issued serial number under California Code of Regulations, Title 11, section 5518 (30 days if the handgun has not yet been manufactured; 10 days if the handgun was manufactured prior to requesting a serial number) the serial number will become invalid.

Welcome to Kalifornia!

i think the info on Oklahoma is wrong.  AR pistols aren't banned but are quite restricted in that they must have a total length under 16 inches.  I just built a pistol lower and it's 14.5 inches long.  I'd need a 1.45 inch barrel to be legal in Oklahoma. (anyone need a couple pistol buffer tubes?)  It's really not possible to meet the standard.  You should change Oklahoma to a not allowed state.

Edit:

Ok, I was wrong.  That's SDA only.  Here's the applicable law:

That means that any gun with a barrel less than 16 inches is a pistol by Oklahoma law.  Federal law is stricter so Federal law would rule.  Oklahoma is GTG.  The charts should be updated to show this latest citation rather than the first citation.  That first citation doesn't prove the GTG rating for Oklahoma.

What does that mean?

Updated for: Alaska, Iowa, Kansas, Michigan, Maine, Mississippi, Missouri, Nebraska and Wyoming

US States:

Alabama ..................................GTG - No Restrictions, but bbl less than 12" is considered a "pistol" and regulated as such for CC purposes (Ala. Code 13A-11-70(1)).
Alaska …..................................GTG - “Concealed Handgun” means a firearm, that is a pistol or a revolver does not include a shotgun, rifle, or a prohibited weapon (Federal) (AK Stat § 18.65.790)
Arizona ....................................GTG
Arkansas ..................................GTG - Barrel less than 12" Per: S5-73-301 "Handgun" any firearm with a barrel of less than 12 inches that is designed adapted to be fired with one hand.
California .................................RESTRICTED - With Bullet Button - California Penal Code § 12276.1(a)(4) , California Code of Regulations § 5469(a)
Colorado ..................................GTG - No Restriction, but bbl 12" or less regulated by handgun statute (C.R.S. 18-12-101(1)(e.5)). Denver 20 rd max, may not apply to pistol (D.C. 38-130)
Connecticut ..............................NO - Complete Ban. Defined here: Conn. Gen. Stat. 53-202(a). Prohibited here: Conn. Gen. Stat. 53-202(c).
Delaware .................................GTG
District of Columbia …................NO - Complete Ban. Assault weapons defined as: DC Official Code § 7-2501.01(3A)
Florida .....................................GTG
Georgia ...................................GTG - X1
Hawaii .....................................RESTRICTED -  With welded magazine or in single shot configuration (Must not fall under "assault pistol" definition) - Hawaii Revised Statutes § 134-1
Idaho …...................................GTG – Under 12” barrel is Pistol - longer may be ok? (18-3302F)

Illinois ......................................GTG - Except complete ban in Cook county (CCC 54-212(a)).
Indiana ....................................GTG - IC 35-47-1-6 not a restriction on OAL.
Iowa ........................................GTG
Kansas …..................................GTG – No possession of a firearm with a barrel less than 12”  of persons under 18 years old. (KS Stat § 21-6301)
Kentucky...................................GTG
Louisiana...................................GTG - X1 at 99%
Maine........................................GTG - "Handgun" a firearm commonly referred to as a pistol or revolver originally designed to be fired by the use of a single hand (25 ME Rev Stat § 2002)
Maryland...................................RESTRICTED - OK to build but not sell
Massachusetts...........................RESTRICTED - Must either be manufactured before 1994 or have a permanently fixed 10 rd magazine.
Michigan...................................RESTRICTED – CAUTION *See below – Under 26” length GTG over 26” may be an illegal Short Barreled Rifle.
Minnesota.................................GTG - X1
Mississippi ….............................GTG – Unless you are a “tramp” (MS Code § 97-37-9).  A firearm of any description with barrel of less than 16” is a handgun (MS Code § 97-37-14)
Missouri ….................................GTG - "Concealable firearm", any firearm with a barrel less than 16”, measured from the face of the bolt or standing breech (MO Rev Stat § 571.010)
Montana....................................GTG - X1
Nebraska …...............................GTG – Any firearm with barrel less than 16” OR any firearm designed to be held and fired by the use of a single hand (NE Code § 28-1201)  
Nevada .....................................GTG - Nevada Revised Statutes 202.253-369

New Hampshire …......................GTG - X2 - Pistol can not be loaded in a vehicle without having a Pistol Permit. No other restrictions. NH pistol laws
New Jersey................................RESTRICTED - Pistol permit must be used. under 50 oz total weight, no handgaurds, 7.5 barrel
New Mexico...............................GTG
New York .................................RESTRICTED - see expired Federal Assault Weapons Ban of 1994 (pre-ban is GTG––all must be licensed)
North Carolina...........................GTG - 1
North Dakota ............................GTG - NRA-ILA data
Ohio.........................................GTG
Oklahoma.................................GTG - But no concealed carry - Oklahoma Statutes, Title 21 § 1290.2.2.a
Oregon.....................................GTG
Pennsylvania.............................GTG - NRA-ILA data
Rhode Island............................GTG - Treated as any other firearm. If OAL under 26" firearm is considered a pistol. R.I. Gen. Laws 11-47-2(8).
South Carolina..........................GTG - However, due to size, does NOT qualify as a "concealable weapon" per SC Law -- see SECTION 23-31-210 (Part 5)
South Dakota............................GTG - NRA-ILA data
Tennessee................................GTG
Texas.......................................GTG - 100% confirmed - treated as any other handgun
Utah.........................................GTG
Vermont...................................GTG - X1
Virginia.....................................GTG - X2
Washington..............................GTG - X2 OpenCarry.org data
West Virginia............................GTG - WV Firearm Laws
Wisconsin.................................GTG
Wyoming..................................GTG - ...any pistol, revolver or derringer, designed to be fired by the use of a single hand. (WY Stat § 6-8-104)

US Territories:

American Samoa
Guam
Northern Marianas Islands
Puerto Rico
Virgin Islands

Notes:

*Michigan - 750.228 Ownership of pistol greater than 26 inches in length; conditions; election to have firearm not considered as pistol.
Sec. 228.
(1) A person may lawfully own, possess, carry, or transport as a pistol a firearm greater than 26 inches in length if all of the following conditions apply: (a) The person registered the firearm as a pistol under section 2 or 2a of 1927 PA 372, MCL 28.422 and 28.422a, before January 1, 2013. (b) The person who registered the firearm as described in subdivision (a) has maintained registration of the firearm since January 1, 2013 without lapse. (c) The person possesses a copy of the license or record issued to him or her under section 2 or 2a of 1927 PA 372, MCL 28.422 and 28.422a. (2) A person who satisfies all of the conditions listed under subsection (1) nevertheless may elect to have the firearm not be considered to be a pistol. A person who makes the election under this subsection shall notify the department of state police of the election in a manner prescribed by that department.

Sorry For Four Posts:
I'm new - Limited to 2000 characters per post.

The requirements are WAY more complex than that. Way to in depth to just list here. It's essentially the AWB along with Hitler's, I mean Healey's, made up rules attached as well.

GTG here in the Granite state. The whole unloaded unless you have a pistol permit is moot here now. No longer require pistol permits in NH. They're still available for residents and non-residents if you want out of state reciprocity and the other state requires a permit from your home state.

For CT, you can have an AR Pistol if it is fixed magazine or a pre ban AR Pistol. Also, CT has AR "Others" which are usually built using the minimum length allowed of 12.5"

So what does the Colorado law mean? If the barrel is less than 12" it's considered a handgun and if it's longer then what? It's not a handgun and/or it's a rifle?

Nevada is good to go for AR pistols, for now. Fucking demoncraps took over in 2018 so the future is looking bleak.

Regarding Idaho, the definition of a "Handgun" in Section 18-3320F is only applicable for purposes of that Section itself. It is not a general definition for any other provision of Idaho law. It only applies to issues regarding possession by minors. An AR pistol of any length is perfectly legal in Idaho for anyone that may legally possess it (non-minors) and provided that it complies with Federal regulations/ATF guidance.

^^ This is the way I understand the law.

Why would your register your AR pistol in Pennsylvania? Are they regulated,

For civilians you're correct. I was active duty military on orders and not a resident of Hawaii.

I was stationed in Hawaii for 5 years and I had my free state AR pistol there on federal land with the OK of our CO and 2 star admiral. HPD can kiss my ass. HPD has absolutely no authority what so ever to enforce state law on a US military base. They just don't. The caveat was I had to leave it on base with my buddy at the armory. So what. Still was legal.

I know messages may have changed this but it was legal to have them in Hawaii when I was stationed there.

In MI, registration (currently via the "Pistol Sales Record") has been required since 1927. However, since 19 June 2018, due to the State AG's opinion #7304, which in essence (literally the bottom paragraph following many pp. of legalese) states that a MI citizen with a CPL and a CPL from another state (e.g., AZ) is exempt "...from obtaining a license to purchase, carry, possess, or transport a pistol..." which the discussion in the preceding pages of the AG opinion includes the Pistol Sales Record (Form RI 060).
In plain text, this means one does not have to submit the Purchaser's Copy of this form to the local law enforcement, IF one has a MI CPL, is a MI citizen, and has a CPL from another state.
The state's government tends to make things complicated here.

(still working on my avatar...) "Nukes. Close is Good Enough!"

There are exemptions for Kansas regarding possession by minors including parents giving permission.

Illinois looking to make that GTG into a Hell no. Surprise surprise... I gotta get the hell out of this BS state!

NM is G2G (Good To Go) for AR Pistols.....and you can open carry it.....DEF NOT possible to conceal carry so why even try....

California requires handguns to have barrels less than 16", unless there is also a barrel less than 16" that can be readily fitted to the handgun.

That means, a handgun can have barrel of 16", but there must also be a shorter barrel for it.

Since swapping AR barrels isn't like changing Glock barrels, mostly likely a complete upper with a shorter barrel should be with it, if a 16" barrel is used.

If anyone updates I'm #5 on NC being GTG.

Buy complete and 4473
Buy a lower and 4473 ~~ mark as 'other'.
Build from an 80% and nothing.

I read every post. Bullet buttons, FOID, 5 and 10 round mags, single shot AR? Some strange stuff out there. CA, IL, NY, MA and some others should not even be considered part of the USA.

Not being familiar with Bullet buttons, I was curious and looked them up.  The information that I came across disputes that they will make an AR pistol legal in California.  Here is a quote:  

"Bullet Button Assault Weapon registration is closed. It is no longer possible to register such a weapon and any attempts to do so may be an admission of a crime. Installing a bullet button does not exempt you from “assault weapon” violations."

Website is here: https://www.californiacarry.org/bullet-button.html

CORRECTION:
MCL 28.421 Definitions; lawful owning, possessing, carrying, or transporting of pistol greater than 26 inches in length; conditions; firearm not considered as pistol; election.
Sec. 1. (1) As used in this act:
(i) “Pistol” means a loaded or unloaded firearm that is 26 inches or less in length, or a loaded or unloaded firearm that by its construction and appearance conceals it as a firearm.

For Connecticut, the Governor is trying to add Preban Pistols and “other” firearms to the AW ban. So that would only leave fixed magazine pistols as legal.

In Texas you can not have AP (green tipped) Rouns in a pistol of any kind (AR).

In Texas you can not have AP (green tipped) Rouns in a pistol of any kind (AR).