Players that have pre-bought weapons, what was the best purchase you've made?

I have 2. First is the AKM, got it around level 28 because I couldn't use anything else worth for a damn. Now being 125 the AKM still does me well (Plus I got the banana mag so extra meme points). Second is the Henry 45-70, I got that around 75 when I saw another player using it 2 months ago. I decided to pick his up and man that thing was fun. After the sniper patch it became my main gun from then on.