What’s A Tactical Pen?
This is a tactical pen, it is a fully functional pen, has a tungsten steel window breaker on the end.
Plus this tactical pen is a 
multi-tool with a knife, screwdriver, wrench, and bottle opener attachments.
It also comes with a flashlight, three spare batteries, and an extra ink cartridge.
The pen itself is made of military grade aluminum and as mentioned before the tip is tungsten steel, ideal for window breaking and self-defense.
This specific tactical pen is actually a free plus shipping offer.
I believe shipping cost was around $14 to $15 after tax.
The pen retails for around $50 to $60, so it was a pretty good deal for a free offer.
You can get one for yourself here.
Chuck