metal shroud for sig 552

[diamond_SEA]

I know they make a metal body for the sig 552, but one issue i have is the plasticy barrel shroud ( the piece that surrounds the barrel, battery, fuse, etc.)

Nowhere i look makes a metal one, do they even exist?

[Naglfar]

There is a railed handguard, forget who makes it but it costs upwards of $200 from outside Canada.

[damage]

Proud makes it.