308B Field Kits (or Spare Parts Kit)

[oadad]

Does anyone know were I can get one or find the parts to build one?  I want a firing pin, bolt gas rings and an extractor (w/spring). I can find ar15 parts but not 308. I've looked at the DPMS site & nothing. I've email their customer service twice in the last month but never heard back.

[imschur]

I think you want you want the  308-BP-01 Its in stock pretty often here