How to get into upgrading/tech
I've been wanting to learn exactly how my gun works, and open it up to solve a problem if one presents itself. I'd also be able to upgrade my gun, knowing exactly what I'm doing. Not saying I want to upgrade my gun just yet, but I plan on getting an Echo-1 M16A3 and want to build a DMR. I have an old Lancer gearbox that I can take apart, but I don't want to ruin it, how do I begin upgrading/tech?
Just tryin' to be tactical