AS4 is listed by Perennial Autonomy as an interceptor for tactical counter-UAS use. It appears among the company’s systems alongside other autonomous aerial platforms. Perennial describes its broader approach as combining AI-driven target recognition and autonomous control with vision-based navigation designed for GPS-denied airspace. The company also describes layered air defense systems as designed to integrate into existing defense networks. The official product listing does not provide AS4-specific specifications or explain how it differs from the company’s other interceptor.