Wise guy? Lol, ok. He wasn't having trouble when you posted this helpful gem.
He was asking for advice on specific parts and suggested ammo types for the new rifle he's building. Even now, he just got a faulty part, which obviously could happen with anything at all you might buy parts for. I really make an effort not to get pulled into online hog waiving contests with trolls like you, but THR is supposed to be focused on a higher level of discourse and posts like yours in this thread are pulling it down. Surely you can do better, if you don't have something on topic and constructive to post, move along to another thread.
If you have suggestions on buffers, gas blocks, Creed ammo, the things the OP is asking about, or if you are like me and think you might want to build something similar, and are interested to see what the OP does, then this thread's the place to be. If you want to talk about how great the .260 is start your own thread and have at it, it's that simple.