I'm new to 1911. I'll be picking up my Colt Defender 9mm this thursday at my LGS. It's on transit as we speak. This will be my first Colt 1911. Not sure if Defender falls into 1911 or not . My question, what internal or external parts should i upgrade? I was reading on some forums, people like Wilson Combat internal parts. Are they worthy? Are the parts will make it better? If i were going to buy additional mags, should i get Colt mags or Wilson's mags? The gun will not be my EDC for sure. So please feed me with your wealthy 1911 knowledges. Thank you.