Out of the box make sure your give it a moderate cleaning and put a patch down the bore to make sure there are no obstructions or metal filings in there.
Non-detergent straight 30 Wt oil can be used for lubrication, a quart is about a buck and will last you a lifetime.
I had a pickup that I used nothing but synthetic oil and grease on. I got rid of that truck and had all this synthetic auto lubricant left over. Emptied out my grease gun into small jars and I use the grease on my AK rails and my makarov pistols.
I have a large spray bottle of Breakfree CLP that I got at a gunshow and I have had it for years for using on guns.
If you are in the Military or have a family member in the service
Militec will ship their unit free lubricants. They use to provide samples free to anyone but I don't think they do that anymore.