I sent my new $160 LCP to Metaloy Works and for $90 I got the slide, barrel, guide rod, and take down pin hard chromed.
Having owned the LCP in stainless, the barrel is still poorly coated.
Having owned a Custom and a gen2 at the same time, I assure you, there is zero difference in trigger weight between the metal trigger and the plastic trigger from Ruger.
I would still opt for the Metaloy Works hard chroming of the barrel at a few bucks more.