Thread adapter on pistol illegal?

[KracknCorn]

I'm going to be adding a thread adapter to my ruger charger, but since I have a mag lock on it already, it's not a big deal. But I was thinking, is adding a thread adapter on a regular pistol illegal? Is that still considered a threaded barrel... but the barrel itself isn't threaded.

[ke6guj]

OK, CA only regulates threaded barrels on semi-automatic handguns that have detachable magazines. No other handgun types are prohibited from having a threaded barrel. so, in your case, with a mag lock, it isn't a semi-automatic detachable-mag'ed pistol, so it shouldn't matter if it has a threaded barrel or not. Whether or not the DA would want to call a barrel with that item attached to it doesn't matter since it doesn't matter if the barrel was threaded or not witha mag lock. On a semi-automatic pistol that did have a detachable magazine, installing that may be cutting too close to the edge of legality to be recommended.

[KracknCorn]

I know it's pushing the limits on a detachable mag pistol, but is putting an attachment to your barrel make it apart of your barrel. Do you call it a threaded barrel with adapter or do you call it a barrel with an adapter that is threaded?

[xxxx]

That's a neat item. May I ask what it is? I would have to assume that using set screws to hold something onto the barrel would leave marks and could possibly be dangerous.

[KracknCorn]

That's a neat item. May I ask what it is? I would have to assume that using set screws to hold something onto the barrel would leave marks and could possibly be dangerous.

It's a thread adapter. It's going on a used factory 10/22 barrel, so I don't really care if it scratches it or not. I would never use a set screwed on muzzle attachment on anything more powerful than a 22. 22lr is a really low pressured round.

[f33dback]

By "detachable" I take it you mean like a rifles magazine not like my glock pistol where they drop out, or am I wrong about that?

[Josh3239]

I believe it should be viewed as a threaded barrel and I'll tell you why. Muzzle attachments are permantley installed to avoid NFA on rifles, but that is the ATF and CA's view of a legal length attachment. There is no permanence requirement for a threaded barrel. If your barrel has threads on it, it is a threaded barrel, it doesn't matter if the threads are removable or not. Now is that law? No, CA is silent on this matter but so is CA about whether they measure folding stock rifles with the stock open or closed (ATF measures open), however we have to assume the worst so on a folding stock rifle we make modifications to fix the stock open to meet overall length because we don't know, but we have to assume the worst. This is in the same arena, CA is silent on the matter and we should assume the worst. That this will make your barrel threaded if attached. Atleast that is my opinion.

[kf6tac]

By "detachable" I take it you mean like a rifles magazine not like my glock pistol where they drop out, or am I wrong about that?

I'm a little unclear as to the distinction you're trying to make, but here's the definition of a "detachable magazine" (regardless of the type of firearm) from the California Code of Regulations:

“Detachable magazine” means any ammunition feeding device that can be removed readily from the firearm with neither disassembly of the firearm action nor use of a tool being required. A bullet or ammunition cartridge is considered a tool.

[ke6guj]

CA PC may be silent on whether OAL is measured with the stock open or closed, but case law has clarified that OAL is measured with the stock folded/closed into its shortest fireable configuration. At least with regards to the 26" SBR law. We have assumed that a court would take the same position with regards to the 30" AW law due to precident set by that existing case law.