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Author Topic: Spikes Tactical snapped gas ring  (Read 2083 times)

katmandoo

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Spikes Tactical snapped gas ring
« on: April 20, 2016, 12:12:23 pm »
I shot an Appleseed this weekend to get my 2nd Rifleman patch.  shot around 200rnds +/- saturday, another 350 or so sunday. The rifle may have had a total of 4-500 rounds through it prior to the shoot.  I started having inconsistent feed malfunctions sunday afternoon.  There wasn't a lot of time to pull the rifle apart and investigate and it was inconsistent enough that i just pushed through the rest of the day (even though it cost me some good scores).  I did a quick clean/lube saturday night using FireClean, so initially thought maybe i didn't do a good of enough job there, keep in mind total round count for the rifle was maybe 700rnds at that point so there wasn't a whole lot of build up and scrapping to do and i had cleaned it prior to the shoot.

at any rate, i pulled it apart yesterday and found a chunk missing from one of the gas rings, I haven't shot a lot of AR platform rifles in the past but this seems a little ridiculous for a system with MAYBE 1000rnds through it.  This is supposed to be the M16 "full auto" bolt from Spikes, i'd think it would hold up better than that.  Is there something else i should be looking for that may have added to the failure or should i just write it up as a bad part and move on? 

MinnesotaKevin - Stillwater, MN

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    Re: Spikes Tactical snapped gas ring
    « Reply #1 on: April 20, 2016, 09:08:47 pm »
    It's possible that the gas rings were dry and ended up snapping from the extra friction and heat.  There is no such thing as a full auto and semi auto bolt...they are both one in the same...the bolt carrier is the part that is different between semi and full auto.
    North CarolinaMedically retired Air Force (17 years, 7 months & 25 days)

    katmandoo

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    Re: Spikes Tactical snapped gas ring
    « Reply #2 on: April 20, 2016, 09:53:11 pm »
    Right sorry I meant bcg when referring to the "full-auto" but regardless I wouldn't know enough to know if the bolts were the same or not.  Thanks for the info.

    I did lube the rings a bit with fireclean, but that is kind of light stuff so it could have dried up I suppose. I use it in my pistols for uspsa and never had a problem but then we're rarely running 300rnds there.



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    MinnesotaKevin - Stillwater, MN

    "The laws that forbid the carrying of arms are laws of such a nature. They disarm only those who are neither inclined nor determined to commit crimes....Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man."

    Thomas Jefferson's "Commonplace Book," 1774-1776, quoting 18th century criminologist Cesare Beccaria in Chapter 40 of "On Crimes and Punishment", 1764

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    Re: Spikes Tactical snapped gas ring
    « Reply #3 on: April 20, 2016, 10:20:05 pm »
    You don't see that very often.
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    sqlbullet

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    Re: Spikes Tactical snapped gas ring
    « Reply #4 on: April 21, 2016, 10:18:28 am »
    Stuff happens.  Even from the best makers there is the occasional part that just doesn't stand up.  And detecting hidden flaws on small, inexpensive parts is cost prohibitive.  They buy good parts, and just accept that there will be a small but measurable early failure rate on the inexpensive parts.

    Have spare parts and know how to change them is the only medicine for these outliers.
    Utah

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    Re: Spikes Tactical snapped gas ring
    « Reply #5 on: April 22, 2016, 07:08:51 am »
    As mentioned above it was more than likely a manufacturing defect (I suspect a high spot that caused extra friction -or- a heat treat issue of being brittle) but it is a small & cheap part and is something to keep in a spare parts kit.  I would highly recommend a McFarland Gas Ring as a replacement.  It's a 1-piece replacement that you'll never have to worry about going out of alignment and it doesn't cost that much more than a stock 3-ring Milspec set.
    North CarolinaMedically retired Air Force (17 years, 7 months & 25 days)

    Lupinus

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    Re: Spikes Tactical snapped gas ring
    « Reply #6 on: April 22, 2016, 10:23:00 pm »
    Interesting, wearing out and needing replacement happens but the snapping part is a bit odd. Also interesting that one gas ring out of the three caused an issue.
    South Carolina

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    Re: Spikes Tactical snapped gas ring
    « Reply #7 on: May 26, 2016, 04:33:01 pm »
    I've only had to replace the rings a few times in the last 12yrs. Most of those were just warn from high round counts. It's possible that there was a flaw in the broken ring. That being said they are a part that will wear out like a spring.

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