You can, but I wouldn't exactly advise doing that. CLP Collectors' Grade is a long term oil/protectant taht works well. For general use, wiping down with a good deep penetrating oil (Marvel Mystery Oil, Kroil) does well with keeping rust away.
Understand the bluing is a oxide layer on the steel that retains rust prevention lube better than raw steel alone (other than just being a pretty blue).
Can you do what you want, sure, and as long as you keep a coat of lube on the surface, should not have rusting problems. The downfall, even the sweat from your hands (salts) can get be forced through such lube, and cause rusting.
So the steel left in a raw state is best not advised, and even a clear coat over the steel would be better (will still be able to wear it off, exsposing the bare metal). If bare if what you want, then I would look into having the receiver Melonite threated.