Someone explain to me.........

[Hilltop123]

https://www.msn.com/en-us/news/crime/man-had-switch-devices-to-turn-guns-into-machine-guns-attorney/ar-BB1gCF9n?ocid=ientp

I am not sure what this article is calling, a switch device. Someone school me, please.
Part of me suspects, this is nothing but fear porn, for the ignorant.

[Lucky1]

Look up auto key cards and wall hangers on you tube

[BULLBLASTER]

Glock switch. A thing that replaced the rear plastic cover on a glock slide and has a switch between full and semi auto.

[phildobaggins]

https://www.msn.com/en-us/news/crime/man-had-switch-devices-to-turn-guns-into-machine-guns-attorney/ar-BB1gCF9n?ocid=ientp

I am not sure what this article is calling, a switch device. Someone school me, please.
Part of me suspects, this is nothing but fear porn, for the ignorant.

https://www.thefirearmblog.com/blog/2017/09/14/want-to-make-your-glock-full-auto/

I had no idea this was a thing.

[Hilltop123]

https://www.msn.com/en-us/news/crime/man-had-switch-devices-to-turn-guns-into-machine-guns-attorney/ar-BB1gCF9n?ocid=ientp

I am not sure what this article is calling, a switch device. Someone school me, please.
Part of me suspects, this is nothing but fear porn, for the ignorant.

https://www.thefirearmblog.com/blog/2017/09/14/want-to-make-your-glock-full-auto/

I had no idea this was a thing.

Well I'll be dipped in shire.....thanks gentlemen