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Thread: AR Hammer material and hardness spec.

  1. #1
    Gunco Member Codaxx's Avatar
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    Default AR Hammer material and hardness spec.

    Hi,
    I am wondering of anyone knows what type of steel the standard hammer is made of. I am assuming its not stainless since its blued.
    Is it standard 1020? A 41 series chromoly? Or a tool steel?

    Does anyone know what the Hardness rating/spec is? Rockell or Brinell numbers would work.
    I don't have a rockwell meaduring tool.

    Thank you for your time and help.

  2. #2
    Gunco Addicted for life j427x's Avatar
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    i'm thinking the later hammers are made of the same MIM steel as the bolt which is 158 carpenter. might be any other injectable steel as this is WAG on my part.

    other than being heat treated i don't think there is anything really special with the hammer and FCG parts.

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    GuncoHolic BBill's Avatar
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    Case hardend ?

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    Gunco Addicted for life j427x's Avatar
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    Quote Originally Posted by BBill View Post
    Case hardend ?

    i suspect the areas making metal to metal contact are hardened before being polished.

    IF their GI parts the triggers and hammers must meet a certain wear limit. i can't recall what that limit is but it is way up there in round counts!

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