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CMMG bore/chamber coating.......

Discussion in 'Rifle Country' started by MIL-DOT, Mar 18, 2010.

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  1. MIL-DOT

    MIL-DOT member

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    I was just looking at CDNN's catalogue where they have several AR-15's built by CMMG that have a bore/chamber coated by something called "WASP" that they say is more durable than chrome lining. Though I've long been a fan of CDNN, I'm a bit skeptical of this particular claim, so I thought I'd ask the matrix.
     
  2. RyanM

    RyanM Member

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    Last I checked, no one knows for sure what it is. I suspect it's iron nitride, the same stuff as Tenifer, Melonite, etc. If so, I think that stuff is tougher than chrome, though I'm not sure what the coefficient of friction is.
     
  3. FMJMIKE

    FMJMIKE Member

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    I have read that it is the same finish as a Glock handgun.
     
  4. Z-Michigan

    Z-Michigan Member

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    It seems to be some sort of nitriding process, which would be comparable to chrome in durability. It happens to be a cheaper process, which is why you would see it on their less expensive models.

    Glock's Tenifer is also a nitriding process, but there are several different types of nitriding which are not all identical. However, all are very hard and should be durable.
     
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