This is a Surefire Pen known as the The Surefire Pen III, model EWP-03-BK.
Machined from high-strength aerospace aluminum" the SureFire Pen(TM) III is available with an incredibly tough Mil-Spec hard-anodized body in black. The pocket clip" nose cone" and retractor button are made of stainless steel with a finish that's as tough as it is attractive. Inside is an imported Schmidt(R) easyFLOW 9000 ballpoint pen cartridge for smooth" reliable writing performance. Like other SureFire pens" this handsome high-performance instrument is tough enough to provide you with a tactical advantage in an emergency.
Features:
Heavy-Duty Stainless Steel Pocket Clip
Rugged Aerospace Aluminum Body
Mil-Spec Hard-Anodized Finish