I carry a sharpie fine point and a Rite-In-The-Rain pocket note book every day. Handy dandy for me. I too enjoy a thicker pen and the sharpie is cheap enough that if I lose it I don't instantly have palpitations due to the cost of losing a more expensive pen. Not what the OP is looking for I know and I would suggest the Fisher Space Pen, being all metal but as already mentioned its not suitable.
In the case of 'tactical' pens, I like the look of them as well, but if I lost it (I frequently misplace pens at work......
) I'd be annoyed, mostly because I couldn't walk straight in a post office or WHSmiths and instantly replace it. If you are interested in the EDC applications of a tactical pen (self defence or breaking glass in an emergency for example) I'd recommend carrying a decent torch instead. Get one with enough lumens and you can temporarily disorient an aggressor from a distance, giving you time and space to move away. Some torches (SureFire, Olite, Nitecore) are strong enough to break glass with, if you need to. If you end up in a situation where you actually have to strike an aggressor with your tactical pen, any pen will do the same job!
Of course, I'm not advocating the use of anything as a weapon in the UK. That's clearly going to land you in hot soup with plod.....
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