Cutting a barrel shorter, light bcg....will it all work?

[LRRPF52]

Do you see any possible advantage to going this route? Anything to do with lock time of the bolt and small velocity difference?

A small thing would be that the gas block is close to the end of the handguard for easier adjustment. And the fact that it's just something different, which I like.

Biggest thing I see that would concern me is, is the window being narrowed down for reliable operation?

If dwell time is reduced, what happens to the gas bleed duration? It goes down.

There are guys who have cut down RLGS to 17" and got them to work, at least with 123gr.

A 16" ILGS would run well suppressed, but you might need to open the gas port for reliable function when unsuppressed.