Anyone have experience with these and know if they are ok in NJ? Do they fit the permanently modified criteria? It says they are internally blocked to 10 rounds but are a 30 round body.

 

http://tangodown.com/shop/tangodown-reduced-capacity-arc-magazine/

It looks near impossible to modify them to hold additional rounds as the tube doesn't run the entire length of the magazine.  It looks like a 10 rd tube with a block attached on the end to extend the length.

It does though, its not like a regular mag where theres a baseplate, that bottom section is hollow as well.

Nobody use these or have one apart?

It does though, its not like a regular mag where theres a baseplate, that bottom section is hollow as well.

 

It looks like the top part of the magazine is sealed and self contained.  It would function much like this mag for an FN 5.7.

It could just have a removable block in it, or the bottom half could be molded with a non removable obstruction. The former would not suffice unter current AG guidelines unless the assembly is altered such that it could not be removed without effectively destroying the magazine, the latter would. 

That's what I'm trying to figure out. It says "internally blocked". From what I've seen online it's still a full hollow body and full size spring. But I'm wondering if the block is in the mold or if it's just a regular block and they would have to be pinned. Was hoping someone here had them or knew more. Guess I'll call and ask them on monday.

So I just spoke to a lady there and told me their mags are not serviceable meaning they are not meant to come apart and the tabs will break if tried rendering it inoperable. She couldn't say for sure if the block is molded into the mag or just a blocker like you can get for the magpul ones. So I guess I should be GTG since you cant take them apart anyway.

looks like "mag must be destroyed in order to open"

 

does that not correlate with legislation?  Buehler, buehler...anyone anyone..

looks like "mag must be destroyed in order to open"

 

does that not correlate with legislation?  Buehler, buehler...anyone anyone..

 

Sounds like it is compliant.