VSR-10 Flute-L barrel set up: Help!

[MiloXC3]

Hi guys, I'm planning on going for the PDI Bull Barrel Flute-L set up, but I found the PDI website all very confusing.

I know I have to buy the Bull Barrel Base and the Flute-L front barrel, but what else do I have to buy? I heard you have to buy specific spacers, an end cap and a silencer adapter.

If you know, please tell me what I actually need for this barrel set up so that it works with a silencer.

Also, what would be the best inner barrel for it? (554mm length).

Thanks!