Okay so yesterday I received my Apex Tactics in the mail. I opened it up and after a few minutes I was outside playing with it. Everything works perfectly except my crane stock. The stock will lock firmly in the first and last settings, but if it is placed somewhere in the middle it will collapse if pressure is applied. I looked at the buffer tube and there is scratches between the holes, like the pin is just scratching it all up. Does anyone know how I can fix this? I just spent a lot of money on this and I don't want to have to replace anything already.