It doesn’t make sense to serialize any other portion because you could just swap that part out and have an ostensibly different firearm.
Grip/frame/chassis is the easiest part to make at home...
Yes, some part needs serialized no that does not mean we make it the easiest part to make yourself
Well, yeah....
Most of the time it doesn't work, rarely it does.
Intermittent rewards are what we're wired for. That's why random rewards/acknowledgment tickle our brains more than standard rewards we know are coming.
That's the reason there's such a big push "to just try it".
It's the same strategy the first crack dealers used