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Thread: New BCM rail

  1. #161
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    The BCM KM 13" rail weighs 7.7oz.

    For a comparison, the NSR 13.5" weighs 7.9oz and the bbl nut is 3.1oz.

    Pretty amazing if those BCM KM weight specs hold until final production
    Last edited by UM-Iceman; 07-29-13 at 16:50. Reason: To reflect Phreakish's post below regarding rail weight.

  2. #162
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    What's the significance of an exterior anti-rotational tab?
    Sic semper tyrannis.

  3. #163
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    Re: New BCM rail

    Quote Originally Posted by Wake27 View Post
    What's the significance of an exterior anti-rotational tab?
    You don't have to have a special upper or drill a hole into your upper, like the NSR requires for anti rotation.
    "I never learned from a man who agreed with me." Robert A. Heinlein

  4. #164
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    Quote Originally Posted by Koshinn View Post
    You don't have to have a special upper or drill a hole into your upper, like the NSR requires for anti rotation.
    Ohh ok I see. Thanks.
    Sic semper tyrannis.

  5. #165
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    Quote Originally Posted by UM-Iceman View Post
    It was mentioned on another site that the 13" rail weighs 7.5oz and the bbl nut weighs 1.5oz.

    For a comparison, the NSR 13.5" weighs 7.9oz and the bbl nut is 3.1oz.

    Pretty amazing if those BCM KM weight specs hold until final production
    That's 7.7 oz for the BCM-KMR-13 rail, which is the complete weight (with all mounting items, including barrel nut).

    The bare BCM-KMR-13 weighs 5.5oz and is long enough to cover the gas block of a rifle length gas tube (approximately 13").

    The bare BCM-KM-10 (10" variant which will cover the gas block of a mid-length gas tube) weighs approximately 4.3oz for a total assembly weight of 6.5oz.

    These are the only details we'll be releasing at this time.

  6. #166
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    Would it be too much to ask what length rails are planned? (9" specifically)

    Thanks

  7. #167
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    Re: New BCM rail

    Quote Originally Posted by Ironman8 View Post
    Would it be too much to ask what length rails are planned? (9" specifically)

    Thanks
    I asked that earlier, also & did not get a response. That info might not yet be available.

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    Quote Originally Posted by JSantoro View Post
    Stop dicking the dog, please. It's gross.

  8. #168
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    Phreakish, edited my post at the top of the page to reflect your correction.

  9. #169
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    Re: New BCM rail

    Quote Originally Posted by Phreakish View Post
    That's 7.7 oz for the BCM-KMR-13 rail, which is the complete weight (with all mounting items, including barrel nut).

    The bare BCM-KMR-13 weighs 5.5oz and is long enough to cover the gas block of a rifle length gas tube (approximately 13").

    The bare BCM-KM-10 (10" variant which will cover the gas block of a mid-length gas tube) weighs approximately 4.3oz for a total assembly weight of 6.5oz.

    These are the only details we'll be releasing at this time.
    Holy crap, that's light!

  10. #170
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    Forgive me for not sifting through the last 8 pages of arguments... but when is the BCM press conference to officially announce this thing?

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