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  1. #31
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    Hmm.... well crap.
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  2. #32
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    Looked like a promising design. Looks like KAC's E3 is still king.
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  3. #33
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    I have been running one of these bolts in a mid-length for about a year. It has seen a tiny bit of suppressed use but doesn't have more than probably 600 rounds on it. I might have to dedicate a little more time to this rifle to see if I can break the bolt.

    Ultimately I still think the design itself rather than the steel used us what gives the bolt its merit. Maybe Sharps should switch to C158 or 9310. While they're at it they can cut a small groove in the bolt's circumference behind the locking lugs and maybe add a bit of material around the cam pin hole like some other companies are doing.

    Ruger is using 9310 for their AR-556 bolts. They recently tested three rifles for longevity. Two guns suffered broken bolts just shy of 20k rounds while the 3rd made it 20k without breaking a bolt.

  4. #34
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    Sooooo, Besides the coating, essentially they ground five lugs off at a 45 degree angle and charge more for it?

  5. #35
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    Quote Originally Posted by driver6814 View Post
    Sooooo, Besides the coating, essentially they ground five lugs off at a 45 degree angle and charge more for it?
    I believe the bolt is S7 rather than Carpenter 158.
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  6. #36
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    So an update, I pulled the bolt after 1,279 rounds from my M4.

    It was developing abnormal wear and there was serious overpressure signs in the brass from the M855A1 I was firing. Both of those I have not seen on my standard bolt and it has well past 4,000 rounds through it.

  7. #37
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    The guy on arfcom has broken his second bolt. This one broke with less than 1,000 rounds fired.

    Here's his video regarding the first bolt:

    I Broke The Sharps Reliabolt: http://youtu.be/tE0Jw0O2Mfo

  8. #38
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    OGLEE: Is this M4 a carbine gas length with a 14.5" barrel? Suppressed or not?

  9. #39
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    Quote Originally Posted by Oglee View Post
    So an update, I pulled the bolt after 1,279 rounds from my M4.

    It was developing abnormal wear and there was serious overpressure signs in the brass from the M855A1 I was firing. Both of those I have not seen on my standard bolt and it has well past 4,000 rounds through it.
    What are your wear signs? Can you post photos of the bolt?

  10. #40
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    Saw the guy's YouTube video who broke the bolt just the other day.

    Looks like I'll be sticking with the typical big names for now.
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  11. #41
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    Quote Originally Posted by GOST View Post
    Looked like a promising design. Looks like KAC's E3 is still king.
    Can the E3 be dropped into any mil-spec carrier/rifle?

  12. #42
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    Quote Originally Posted by Stone View Post
    Can the E3 be dropped into any mil-spec carrier/rifle?
    I believe you will need an E3 barrel extension for the bolt to fit.

  13. #43
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    Quote Originally Posted by UWone77 View Post
    I believe you will need an E3 barrel extension for the bolt to fit.
    Yes.

  14. #44
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    Quote Originally Posted by usbp379 View Post
    What are your wear signs? Can you post photos of the bolt?
    I canmot get a good picture due to the flash whiteing out everything since the steel and np3 coating are so close in color. But it looks like the costing is chipping on the lugs and bolt face, but NP3 is not a coating that chips and flakes off so I don't know if it is steel chipping off or what. I have never seen wear like it before.

    As to the gun it is a 14.5" M4.

  15. #45
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    Heard they had a batch that improperly heat treated and are offering an exchange.
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