Have the 'ballistic knives' ever been really used or even produced (beyond some homemade prototypes)? I've read about a Spetsnaz knife but it doesn't look too impressive. - Quora
Knife Laws Across the Country - Exquisite Knives
The Most illegal Knife in the United States | Tekto Knives
Ballistic knife - Wikipedia
Amazon.com: MTech Ballistic "Lifestream" Spring Assist Knife - Red : Tools & Home Improvement
Video of a homemade ballistic knife, the most illegal knife in America. Blade Magazine takes a look at what ballistic knives are and how they became... | By Blade Magazine | Facebook
What You Need to Know about Ballistic Knives - Shieldon
Ballistic Knife: The Most Illegal Knife in America - BLADE