About the only way that is going to happen is if someone had your rifle and they stripped it for parts and sold them off to make a profit and you located who bought the parts. The flipping of these rifles and parts was happening quite a bit 5 years ago. Now the trend is more of guys chasing down the parts to complete rifles. Most of these will only ever be mismatched shooters. If you are OK with that just know that many times, completing a rifle over time and searching for parts ends up costing more than if you bought a complete gun. I have done it all ways imaginable complete, builds, ect. Sometimes the builds are rewarding in the fact that most of the fun is in the hunt for parts. Good luck on your project.