"that the Armatix smart gun would not trigger the law"
Is that a device? Maybe personification?
2 answers
I believe it is a firearm, a gun to shoot bullets.
The use of the word "trigger" as a verb in the same sentence with "gun" -- that's a play on words, for sure, but I am not sure ... maybe metonymy.
http://web.cn.edu/kwheeler/tropes.html
http://web.cn.edu/kwheeler/tropes.html