By Miguel.GFZ

Semi-retired like Vito Corleone before the heart attack. Consiglieri to J.Kb and AWA. I lived in a Gun Control Paradise: It sucked and got people killed. I do believe that Freedom scares the political elites.

40 thoughts on “What the fork did I just watch?”
    1. Did my basic at Ft Dix in the late 80’s. I remember 2 or 3 trainees being hauled off every day from this. I even remember a C17 being downed by flying over the range once at Ft Bragg. Only the German M16 clones did it. Reagan got a good deal from the Germans for tens of thousands of these malfunctioning weapons. I don’t know how we survived…

      Not

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  1. I didn’t turn on the audio, but… did I get this right:
    1. He didn’t clear the chamber.
    2. He set the gun on the table, pointing the muzzle at his chin (1:14).
    Hm… what could possibly go wrong?

  2. Now that little firearms illiterate piece was funny…I thought at first that it was a joke but that ignorant idiot was actually thinking that he was telling the truth.

  3. He speaks with a voice of great authority, so it must be true… right?
    (Was there anything in that vid that made sense? As I understand it, the going-off-if-bounced thing was a problem with early-model UZIs, the real open-bolt ones, but other than that… the awesome power of that poodleshooter sounds like a load of bullpup, all right, for a sufficiently nonstandard meaning of “bullpup”.)

  4. Other nonsense aside, I could definitely see how in certain conditions, like a firing pin stuck forward in the bolt, having the bolt slam closed could cause an AD. It’s not common, it’s definitely not normal, and harm can be avoided by following the four rules.

    1. BULLSHT. The bolt going home does NOT EVER cause a ND (not AD). You need to pull the trigger. Don’t be such a moron.

      1. Slam firing is a real condition, it is absolutely a malfunction, it’s most common on floating pin firearms like an SKS that haven’t been cleaned and have fouled pins, and when it does happen, it almost always results in runaway automatic fire (because it keeps cycling with the stuck firing pin until the weapon is empty.)

        It never happens under normal conditions but is a real malfunction possibility.

      2. You call others on here morons, but don’t seem to know very much yourself. There are at least two different malfunctions that can cause the weapon to fire as the bolt goes forward.

        1 If the firing pin is stuck in the forward position (usually cause by fouling), as the bolt engages the locking lugs, the bolt carrier continues to move forward, which will eventually cause the stuck firing pin to protrude from the bolt face, which strikes the primer and causes the weapon to discharge. This usually causes the weapon to “run away,” that is, the weapon will act like an open bolt machine gun and fire until it is out of ammo.

        2 A broken disconnector can cause the hammer to “follow” the bolt carrier as it moves forward, especially as the trigger is held down if the bolt flies forward. (i.e., you just fired it) The hammer strikes the rear of the firing pin and the weapon discharges. This is usually what causes “doubles,” where you pull the trigger and two rounds are discharged. A weapon that fires with this malfunction will fire before the bolt is locked, and can be quite dangerous.

  5. We need to inform Gun Jesus that the definition of “Bull Pub” rifle has changed.

    The amount of scary in that video just amazed me. According to that “expert”, if I have a loaded mag and press the bolt release the gun will fire. And even though my finger is not on the trigger, when that bolt comes forward after cycling the round, it will go bang again.

    My oh my.

    I was doing some inspection of the M-16 bolt and bolt carrier the other day. I was trying to figure out exactly how critical the timing was for an auto-sear.

    THIS WAS ON AN AR-15 without an auto-sear, without any giggle switch extras!

    So one of the big arse things is to make sure a weapon does not fire when out of battery. As the bolt on a BCG comes forward it cams to rotate and is soon locked behind the locking lugs.

    The firing pin is in the bolt carrier. Until the bolt is pushed back into the bolt carrier a significant distance, all but about the last 1/16th of an inch, the firing pin does not extend out of the bolt face at all. The bolt has already rotate behind the locking lugs before this happens.

    In other words, the AR-15/M-16 was designed so that even if it slam fires it will be in battery.

    In addition, when the BCG is pulled back, the firing pin is pulled away from the bolt face. The firing pin can ONLY be stuck extended IF it is actually broken and jammed.

    I spend hours studying this weapon system and the blue prints because I learn so much about machining and design just be figuring out how and why they do something.

    So what I learned is that the timing on the auto-sear is not critical. It requires that the bolt be far enough forward that the firing pin will extend far enough to cause the primer to initiate, but there is time and spacing that is relatively sloppy there. If the hammer drops to soon you have a slam fire like thing happening. If it drops a little late, it just slows the rate of fire down a little bit. Way cool design.

    1. Actually if you have an auto sear timed too early you will get hammer follow and lite primer strikes. Had this issue with mine(LEAGAL reg)
      And timed late does change the rate of fire. It IS a brilliant design

        1. That’s extremely interesting to me. I’ve always thought that there is a particular range of sear-timing that presents the possibility of the hammer striking the firing pin between the moment the the bolt reaches the breech face and the moment the rotation of the locking-lugs reaches a degree of engagement (battery) adequate to endure a discharge. Am I mistaken? It seems clear that once the “adequate” engagement of the lugs is achieved, any further delay of the hammer-strike will serve to reduce the cyclic rate of fire. I’m in complete agreement on that. Also, if the hammer is released very early (like if the sear or disconnector fail to retain it) then it will ride first the bottom of the bolt carrier and, as the BCG moves forward, the firing pin. Here, too, I agree with the light primer hits. IIRC that scenario is what the cut-out ramp on the bolt carrier, and the notch on the hammer, together preclude in the semi-only AR-15 configuration.
          It’s the range of sear-timing lying between those points that interests me. It stands to reason that there must be some moment to release the hammer that will result in it striking the firing pin at the exact moment that the bolt reaches the breech face. Any earlier, and the hammer will ride the pin to some degree. Call that “sear-timing 0” – open-bolt, fully out-of-battery. Similarly, call the moment when the locking-lugs are fully engaged “sear-timing 1” – fully in battery. Somewhere in-between is “sear-timing S” which is the moment when the lugs are engaged just enough to survive a discharge. The interval between “sear-timing 0” and “sear-timing S” is the danger zone. (Between S and 1 lies the premature-wear zone.)
          So… if I’m understanding the previous posts here, that “danger zone” is covered by the detailed geometry of the cam-pin slot? The firing pin is prevented by the BC from protruding through the bolt-face until the BC has proceeded so far forward that the slot-geometry has caused the bolt to rotate into full battery? That’s why a slightly-early sear-timing, even one in my “danger-zone”, still results in a light primer hit – not an explosion? The interaction of sear timing, lock time, BCG velocity and cam-pin-slot geometry is subtle. I’d be grateful for any clarification.

  6. OMG my AR is defective. When I drop the bolt to chamber a round it doesn’t go bang. Gotta get me one of those German ARs. /sarc

  7. So… I tested it out on several of my semi-auto rifles, not just the XR-15 shorty style rifles. ( I did not know you could make a rifle out of an Xfinity Remote Control but, I am not that big of a rifle enthusiast.)

    None of them had the bolt slam shut no matter how I dropped them onto the buttstock. None. Granted, maybe this particular model of XR-15 that he is demonstrating does not have all the safety features my more recently purchased rifles do, but I could not get a single bolt to drop unexpectedly.

    Then I cycled the action on the rifles, and curiously, when I closed the bolt, as you would during normal operation, it (GASP! The HORROR!) slammed shut. Open the bolt with an empty mag, or use the BHO. Then release the bolt, and it closes. Very rapidly. Keep your fingers out of the way of the ejection port rapidly.

    If the rifle were to fire because the bolt “slammed” shut, there would be no way to actually load the rifle without it discharging. Then subsequent falls of the bolt would result in a runaway rifle, only stopping when the magazine is empty.

    The scary part is that people will believe this guy.

    1. I grabbed the first AR15 at hand, made it safe, then slammed the buttstock straight down. The BCG moved back a bit into the buffer tube. This released the pressure on the BHO which dropped down. There BCG then slammed forward into battery.

      I’m positive that if there had been a mag in there with a round it would have chambered.

      So I was going to call BS on slam butt into table to drop the bolt but it works.

      1. If there had been a loaded mag in there, it would absolutely have chambered a round.

        But would it have FIRED, as he claimed?

        No, not without an honest-to-goodness mechanical malfunction (i.e. the firing pin lodged forward in the BCG, causing a slam-fire), which is the ONLY acceptable cause of an “accidental discharge”.

        And if recruits in basic training were killing themselves setting their guns down “every day”, you’d think we’d have heard about that by now, and the military would have replaced their defective rifles sooner than later.

  8. He’s full of crap. That is a post ban upper on that rifle. No flash hider, bayonet lug looks filed down.

    Also, if you loot at the carry handle, it is attached to the upper on a Picatinny rail, which wasn’t invented until 1994 and became Mil-STD-1913 in 1995.

  9. And HE is amazed at the ignorance out there!
    Even the ones I handled in the Air Force in the 80s wouldnt do that no matter how hard you slammed them and they were US ARMY surplus passed off to us. Geesh whatta maroon

  10. Well, the one saving grace here is that he is not an anti-gunner. This means he is capable of learning the correct answer.

    1. He made the video to deflect criticism of his command’s gunhandling skills: “This wasn’t caused by negligent handling, guns naturally go off by themselves.” Putz.

  11. Dunning-Kruger effect. The people most incompetent believe that they are experts, and that experts are incompetent.

  12. “GrandMASTER??????” Hmmmmmmm……I’m not a wizard but somehow that title………………………well, it just sounds “racist”. But he is articulate…..and clean. LOL. Maybe he’ll run for President….or play Samuel Jackson . He captures that “thoroughly offended 24/7” look well.

Only one rule: Don't be a dick.

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