I picked up a few of these as spares. They are impressive to be honest. And I am a BCG snob. No tooling marks. Staking is decent. No cheap gas key screws (even if I do prefer OCKS) Phosphate extractor. Billet gas key. The nitride finish isn't as nice as the same H&M ones on my RCA's but it's nice and even. My guess is these are either Microbest or Toolcraft.
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