(Due to the length and geometry of the blade, it is of limited use as a weapon, but that is also not its purpose -.. For that you get a robust and highly usable diameter, for whose it's no dispute over illegal possession of arms will be.)
Here, incidentally, is true: If you are satisfied with the out-of-the-box state the knife and eg joy of rich feel of the opening and closing of feel - then you can further increase the enjoyment, by the same as the first put a drop of oil in the folding mechanism. (It can be then quite incidentally, open-handed, but that does not look to him to yes ;-)
And that it is a great gift idea, I can only underline again: After all, a tactical knife should always be tailored to the individual approach of the user and therefore is hardly as a gift - while this does not apply to a universal work knife like. That's point one, point two, and is: A good pocket knife can use anyone, even if he has nothing else with knives on their hats and had procured from from none or no useful.