I have a SAR-1. It's combat accurate & boringly reliable, but it's pretty heavy, and the ammo and mags are as well. Thinking about a situation where we'd have to go (unlikely, yes, but a possibility, always), I feel like a SUB-2000 will definitely stow better, ssmaller, lighter Glock Stick mags, ammo is cheaper & lighter. Definitely not as powerful and definitely not as long range, but I'm just trying to wrap my mind around the best options. Opinions please.