I recently assembled my first AR but I don't know what to do know? Should I take it to the range and have fun or are the things I need to do to make it ready? Background: I bought a PWA lower before they became illegal (CA) and recently recieved the Wilson Combat M4 upper as a birthday gift from grandma. Is it safe to shoot right now? Or, should I clean and/or lubricate it first? The barrel is carbon steel barrel and Wilson told me it did not require breaking in. Or, should I take it to someone to have it inspected first? (It is all new.) Any advice will bring me closer to enjoying my new AR sooner, so thank you for any advice.