Per the article, it uses 12 ga. blanks, not a flashbang, which is a regulated explosive device.
Major language warning for anyone offended by the “N-word,” which, as many have pointed out, is perfectly okay for use between blacks, but if the Marine was a white man, you can bet the mobs likely would’ve burnt down his house by now.
For those wondering about the “bobby trap”, it’s a fake box loaded with 12 gauge blanks that will explode when the package is picked up. It’s completely harmless. It’s sold online but it’s currently sold out.