Forgive the double post, I accidentally initially posted this in the wrong forum for AR upppers.
Just figured I’d let my fellow LWRC shooters know that LWRC finally has the gas piston maintenance kits back in stock, with gas piston, return spring, and spring cup. These are for the M6 ic type rifles with the short spring cup. They have been out of stock for awhile, and I was on the waitlist to get spares.

Thanks for the heads up.