UZI Tactical Pen UZI-TACPEN8-GM Aircraft Aluminum Defender Refillable Tactical Glass Breaker Pen with Glassbreaker Carbide Tip, Gun Metal This Heavy-duty Uzi tactical pen is a Tactical Glass breaker Pen made of lightweight aircraft aluminum Features an Ultra durable carbide tip glass breaker with a ballpoint pen tip Compatible with Standard and Fischer space pen refills Tactical Glass breaker Pens are good for military and gun enthusiasts as well as hunters and others who enjoy camping and hiking.