Depending on what you consider an absolute necessity when it comes to the EDC, the new GP 1945 Bolt Action Tactical Pen checks off a bunch of things on the list in one easy to carry package. Survival glass breaker made from tungsten with a push away tip. Incredibly addictive bolt action mechanism for pen deployment and list completing. Spaced, knurled grip that doubles as daily measuring device. Two level pen clip that will work with any kind of pocket. Like all good Kickstarter pen projects, it comes in a aluminum, stainless and titanium variants depending on your material of choice and price range. Unlike other tactical pens, the GP 1945 also has a built-in whistle with multiple tones that you can adjust by sliding your fingers up and down the pen clip. This pen could actually save your life. The Kickstarter for the GP 1945 Bolt Action Tactical Pen ends in around two weeks with estimated delivery of the product slated for November / December depending on model.