ASM parts substitution

[Swampy]

I have an old Lyman 58 Remmington, haven't fired it in years due to the fact that it's an ASM and as far as I know the company is defunct. Would Pietta or Ubi parts fit?

 

[deermanok]

Deercreek Products has some ASM parts available.

 

[michiganmuzzy]

Didn't Pietta make the 58 for ASM?