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  1. #1
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    Finally "Broke" an AR

    Right up to today, I had been on a pretty long streak with no major functional problems with any of my ARs.

    I took my 18" rifle to the range to shoot some groups. It had been a while since I shot it and I was really enjoying what a soft shooter it is right up until it simply refused to function. It would fire and eject, then hang with a new cartridge 1/2 way out of the magazine. I could close the bolt with the forward assist and it would fail to close on the next round. I swapped mags once, then swiched ARs. I did not try to diagnose it at the range.

    When I stripped it tonight, it was obvious that I cleaned it very thoroughly and put it away without lube the last time I shot it. The BCG was as dry as the proverbial bone.

    I fired about 60 rounds before it choked. I honestly thought my gas block screws had loosened and did not think about lube at the range.

    Andy
    Last edited by AndyLate; 11-14-22 at 07:24.

  2. #2
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    Make/model?

    Btw, that is seriously not good. A dry BCG should go 600 rounds, not 60. I shoot "bone dry" rifle all winter long.
    It's hard to be a ACLU hating, philosophically Libertarian, socially liberal, fiscally conservative, scientifically grounded, agnostic, porn admiring gun owner who believes in self determination.

    Chuck, we miss ya man.

    كافر

  3. #3
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    The OP says "enjoying what a soft shooter it is," which tells me it is probably on the hairy edge of being under gassed, and/or under-sprung as it is. And, depending on how dirty the ammunition shot, the brand of ammunition, how clean the magazines were, and the ambient temperature, I can believe 60 rounds.
    Last edited by lysander; 11-14-22 at 06:34.

  4. #4
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    If I had a buck for every time I went to the range and forgot to lube an AR. It always worked for the load out, I usually leave a skim coat on the bcg after cleaning and returning to the safe. It doesn't matter what's on it and it varies as I cycle through whatever is free.
    GET IN YOUR BUBBLE!

  5. #5
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    "An AR will run Dirty and Wet, but won't run Dirty and Dry".
    A true "Gun Guy" (or gal) should have familiarity and a modicum of proficiency with most all firearms platforms.

  6. #6
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    So.....How many of you folks operate your vehicles without oil????

    Curious minds want to know........
    SHOOT MORE -POST LESS!!

  7. #7
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    Dunk the bolt in Froglube and add a touch every other shoot. I never have to lube prior to shooting. That's nuts.
    "What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v

  8. #8
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    Quote Originally Posted by SteyrAUG View Post
    Make/model?

    Btw, that is seriously not good. A dry BCG should go 600 rounds, not 60. I shoot "bone dry" rifle all winter long.
    Mixmaster/home build - Rainier 18" rifle gas CHF barrel (.89 gas port per Rainier), Sabre Defense receivers, SDI phosphate BCG, and an A5 H2 recoil system with BCM rifle spring.

    The rifle is neither new nor a high round count gun. I have shot at least a few hundred rounds through it without issue. That does not mean it isn't on the edge of failure when clean/lubed, of course.

    I was convinced the gas block screws must be loose but everything was tight.

    600 rounds dry? More than I would have guessed, I certainly thought it was weird mine choked.

    It was dry as in zero lube. I had cleaned it with Hoppes, which pretty well strips all lube from it.

    Andy
    Last edited by AndyLate; 11-14-22 at 07:26.

  9. #9
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    Seems a little light on the gas drive...

    Quote Originally Posted by AndyLate View Post
    Mixmaster/home build - Rainier 18" rifle gas CHF barrel (.089 gas port per Rainier), Sabre Defense receivers, SDI phosphate BCG, and an A5 H2 recoil system.

    The rifle is neither new nor a high round count gun. I have shot at least a few hundred rounds through it without issue. That does not mean it isn't on the edge of failure when clean/lubed, of course.

    I was convinced the gas block screws must be loose but everything was tight.

    600 rounds dry? More than I would have guessed, I certainly thought it was weird mine choked.

    Andy
    Black River Tactical
    BRT OPTIMUM Hammer Forged Chrome Lined Barrels - 11.5", 12.5", 14.5", 16"
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  10. #10
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    Quote Originally Posted by Clint View Post
    Seems a little light on the gas drive...
    You would be the guy to know, but that is the spec Rainier posted on their site for the Mountain series 18" barrels. Purely coincidence - the gun I switched to has a 16" BRT Light Optimum barrel.

    Andy
    Last edited by AndyLate; 11-14-22 at 07:23.

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