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Thread: Spare parts for piston upper?

  1. #1
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    Spare parts for piston upper?

    I just bought a Sig516 upper on a whim, I have a few DI guns but this is my first piston gun.

    I usually keep parts like gas tubes on hand. Is there anything I should have extras of for this upper?





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  2. #2
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    Quote Originally Posted by omegajb View Post
    I just bought a Sig516 upper on a whim, I have a few DI guns but this is my first piston gun.

    I usually keep parts like gas tubes on hand. Is there anything I should have extras of for this upper?





    Sent from my SM-N975U using Tapatalk
    Of course the 516 doesn't have a gas tube, so no need to worry about that. I own several 516s. As far as "piston unique" parts go, I do have a couple of extra piston pushrod assemblies, and an extra gas valve. Only other really unique part to have on hand might be an extra bolt carrier group. Numrich is a good source for 516 parts. I will add that although I have been collecting some extra parts for my 516s, I have not needed any of them yet. So far, 100% perfect function and reliability, along with very good accuracy.

  3. #3
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    Thanks I'll check them out.

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  4. #4
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    Spare parts are good regardless of what you run.
    Gettin' down innagrass.
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    Spare parts for piston upper?

    Yeah, I have a spare carrier I got cheap, as well as a few gas valves and an op rod.
    CDNN had some parts, as well as Numrich and optics planet.

  6. #6
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    I would think the biggest item(s) to have is an extra piston assembly, i.e. piston, rod, spring, etc. The BCG will be a keyless one and even regular carriers rarely break. Most bolts (to include the 516) are basically AR ones, with or without the gas rings.
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  7. #7
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    A DI upper? (sorry, couldn't help it)
    Patriotism means to stand by the country. It does not mean to stand by the President... - Theodore Roosevelt, Lincoln and Free Speech, Metropolitan Magazine, Volume 47, Number 6, May 1918.

    Every Communist must grasp the truth. Political power grows out of the barrel of a gun. Our principle is that the Party commands the gun, and the gun must never be allowed to command the Party Mao Zedong, 6 November, 1938 - speech to the Communist Patry of China's sixth Central Committee

  8. #8
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    Quote Originally Posted by 26 Inf View Post
    A DI upper? (sorry, couldn't help it)
    But it is a good option.
    The number of folks on my Full Of Shit list grows everyday

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  9. #9
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    Quote Originally Posted by omegajb View Post
    I just bought a Sig516 upper on a whim, I have a few DI guns but this is my first piston gun.

    I usually keep parts like gas tubes on hand. Is there anything I should have extras of for this upper?

    A spare upper
    Proper Planing Prevents Piss Poor Performance.......

  10. #10
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    You know, for the price Sig is charging for this apparent overrun of 14.5 uppers (they come with full auto BCGs) from a military contract, buying another one as a spare is not a crazy idea.

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