This is a phenomenon with which I am quite familiar these days, though indirectly. A good friend of mine is obsessed with anything "tactical". He finally admits, after some effort on my part, that it is all about the appearance, not really practical considerations at all. He has been "modifying" his Glock 26 ever since he got it.....and has now gotten to more or less the final stages of the process, which include having ports cut into the slide, as well as laser engraving a pattern on the outer surfaces. Oh and he has now decided to have the slide milled for installation of a $500 red-dot sight (an "RMR" or something like that).
So, I have had to endure hearing about (and discussing) all of this for over a year now.
He has a fancy aftermarket trigger, recoil assembly, sights, undercuts on the trigger guard, some reshaping of the backstrap portion of the grip.....and soon, a bunch of holes cut into the slide, a skull pattern engraved on the slide surfaces and a red-dot costing as much as the gun was new.
All in all, he will have about $1800 - $2000 (total) invested in his $500 Glock.....which in no event will ever improve his shooting performance one iota.... and the resulting contraption will be worth less than the original (unmodified) gun was as new.
D%$@*ed load of nonsense, if you ask me. To each his own, though. Even though he is my friend and I try my best to be supportive, I find myself referring to him as a "mall ninja" under my breath and to mutual friends now. We just sit and roll our eyes when the subject comes up.
The worst part is, he is NOT a teenager. This guy is 32 years old (at least, chronologically....perhaps not mentally).