Very nice! I always wanted a 1911 but I'm a fan of good old sliding action. Also not that easy to carry due to weight.
YES! Building your own AR is extremely addictive! I first bought a cheap AR from S&W Sport which was nice but I wanted more. Sold it. Then I upgraded to a CORE15 and added a full rail and sights and grip. Then I started buying the upper and swapping out all the internals for better parts. It really can be fun but some things you need to know what you are doing, like the gas return. I used to think I was the only Korean this much into guns but I have found many in my area who love guns and have spent tens of thousands of $$$$ on guns. One of my clients who is also Korean has a collection worth over $100k (and he was a director for the NRA.) I must have spent already several thousand on ammo alone. As I said before, it is an expensive hobby but so much fun!