M14 EBR springer sniper idea
 

So I was watching this video on youtube that showcased a M14 EBR with a suppressor and when it was firing sub-sonic ammunition the rounds needed to be manually cycled.

That got me thinking of the possibility of making an M14 springer sniper rifle instead of an AEG sniper rifle. It would make sense having to manually pull the bolt back every time you wanted to fire just like the M14 shown in the video.

So my question is: Is there an M14 EBR/M14 spring rifle that can be properly upgraded to become a good quality spring sniper rifle platform?

PS here's the vid I was talking about: YouTube - M-14 EBR Silencer

I'm 99% certain that there is no way to upgrade the inner barrel/hopup, or even adjust the hopup in the few M14 springers I've seen.

Only one I know about is a TSD or other sub-par brand which I doubt has ANY compatibility for upgrades. If you have the technical know-how there might be a way to simulate the round getting chambered via pulling the back back with each shot. I'm not sure if this is 100% possible but where theres a will theres a way. Or just pull the bolt back on an AEG, though does nothing can still simulate a bolt action for you.

Hmm, I kind of thought the TSD wouldn't have any room for mods.