Shares in Stinger Systems soared another $4.30 on Wednesday as the provider of stun gun and other non-lethal security equipment responded to a lawsuit filed by a competitor.

Stinger (Pink sheets: STIY) shares closed at $22.30, just off a 52-week high of $23. It’s low is $1.25. The stock has skyrocketed in value over the past four months as the company has announced new products and up to $17 million in capital investment from undisclosed investors.

Taser, an Arizona-based company, has filed suite against Stinger, alleging false advertising and other claims.

In a response released earlier this week, Stinger labeled the suite as “irresponsible”.

For information about the suit, see: www.taser.com/litigation

Stinger: www.stingersystems.com