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Thread: Project Featherweight

  1. #161
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    Thanks Rob!

  2. #162
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    Very nice rifles in here! I've been trying to put mine on a diet by adding as many polymer pieces in place of steel/aluminum. It used to weigh in at 8lbs, and it just felt like a pig sometimes. Hopefully I can shave off a pound or so and get it back into fighting weight.

  3. #163
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    Quote Originally Posted by JSGlock34
    Some great data in here.

    I was wondering if anyone has compared the weights of various rail covers? I imagine the various ladder covers (I think they're all made by Ergo at the end of the day) are lightest - one of the posts in this thread have them at .4oz. Just curious if anyone has put the XTMs or KAC rail panels, for example, on the scale. Unfortunately my digital scale isn't precise enough for fractions of an ounce.

    Of course, one of the nice things about using the Troy/VTAC Extreme handguards is that you don't need rail panels...
    Tango Down 6" SCAR Panel - .9 oz
    1 pack XTM panels - .9 oz

  4. #164
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    Did you spend a lot of time de-oiling and degreasing before painting? What cleaner did you use?

    Curious how long the Krylon holds up... I'm sure the grips, levers and rail are the first to wear off...

    Rmpl

    Quote Originally Posted by gotm4 View Post
    Latest pics of Project Featherweight with Krylon:
    "Our destruction... will be from another quarter. From the inattention of the people to the concerns of their government, from their carelessness and negligence..."
    ...Daniel Webster, June 1, 1837

  5. #165
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    man nice rifle!

  6. #166
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    Quote Originally Posted by SC-Texas View Post


    Polymer lower, Carbon fiber forearm, 11.5" cmmg Govt. Profile barrel.

    That is really light! What kind of accuracy do you get?

  7. #167
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    Quote Originally Posted by gotm4 View Post

    What flash hider is that?
    Verrrry nice gun.
    Is the stock going to stay as is?

  8. #168
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    Quote Originally Posted by Redneck19 View Post
    What flash hider is that?
    Verrrry nice gun.
    Is the stock going to stay as is?
    It's a PWS FSC556 pinned and welded to the 14.5" barrel. Yes the project is done and the rifle is staying in that configuration.
    Chief Armorer for Elite Shooting Sports in Manassas VA
    Chief Armorer for Corp Arms (FFL 07-08/SOT 02)

  9. #169
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    I modified my cav arms build using a spikes LW carbine upper, expecting to cut the weight slightly. I found out that it actually weighs 1oz more than the BCM LW midlength upper .750" gas block I had before (moved to a different rifle now). I noticed the taper is different on the chamber end of the barrel as compared to the middy. I went on BCMs website and saw that BCM did the same thing.

    My conclusion is that middy vs carbine upper, there isnt a as weight loss as I'd expect with the carbine. I had assumed that since their is 2" more of barrel milled in front of the FST it would be lighter. I didnt consider the construction differences from under the handguard because I assumed it was the same. I wonder how much less weight a .750" block upper is vs an upper with .625" block. Obviously a middy handguard will weigh more than a carbine handguard by a couple oz so that has to be considered. But for anyone trying to make a LW build and deciding between a middy or carbine. I havent notice any significant difference. The carbine can possibly weigh just as much or more.

    Notice how there is more metal near the delta ring on the carbine. Any idea why the carbine has it but the middy doesnt?



    Last edited by ForTehNguyen; 10-08-10 at 10:33.

  10. #170
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    I'd be willing to think that the carbine upper doesn't have the same barrel profile as the middy does. It appears that the carbine actually has a thicker barrel profile overall. Looking at the FSB on the middy it steps down and appears thinner prior to and post of the FSB. The carbine barrel appears to be around .730 before and after the FSB so that probably makes for the visual difference as well.
    30 caliber junkie.

    God Bless America.

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