ARMagLock: No Bullet Button Required

As soon as one law is passed, another gun owner comes up with an ingenious solution. The latest innovation comes courtesy as a reaction to California’s and New York’s recent new laws. The ARMagLock (patent pending) is specifically designed to render weapons legal without registration.

ARMagLock explains it best:

The California Legislature is now trying to pass a law mandating registration of all assault weapons. SB 47 will require that all assault weapons owners register their firearms with the CA DOJ, to include AR-15 firearms with magazine locking devices requiring a tool or bullet to remove the magazine. The registration shall contain a description of the firearm that identifies it uniquely, including all identification marks, the full name, address, date of birth, and thumbprint of the owner, and any other information that the department may deem appropriate.

SB 47 amends the definition of an assault weapon to refer to a rifle that has one of several specified military-style features and “does not have a fixed magazine,” rather than a gun with one of those features and the “capacity to accept a detachable magazine. Continued legal possession requires that you REGISTER and pay a FEE (TAX) on ALL your semi-autos newly classified as “assault weapons.”

Capture 2

These new laws apply to rifles that do not have a fixed magazine. The laws define “fixed magazine” as an ammunition feeding device contained in, or permanently attached to, a firearm in such a manner that the device cannot be removed without disassembly of the firearm action. This wording essentially renders other magazine locking devices useless. AR-15 owners now have to disassemble their firearm action in order to release the magazine.

Just to be sure there is no confusion, the new law states (b) (1) Any person who, from January 1, 2001, to December 31, 2013, inclusive, lawfully possessed an assault weapon that does not have a fixed magazine, as defined in Section 30515, including those weapons with an ammunition feeding device that can be removed readily from the firearm with the use of a tool, shall register the firearm before July 1, 2015. See here for exact wording of the law: SB 47.

The ARMagLock turns your firearm into a “fixed magazine” firearm that cannot release the magazine unless you pull the takedown pin, and separate the upper and lower receivers, thus “disassembling” the firearm action. Once the receivers are minimally separated, the ARMagLock can be engaged to release the magazine.”


ARMagLocks can be purchased directly from manufacturer for $52.99. To those of us in less regulated states, it may seem like a lot, but to avoid registration, I am sure a few shooters will appreciate it for any price.

Nathan S

One of TFB’s resident Jarheads, Nathan now works within the firearms industry. A consecutive Marine rifle and pistol expert, he enjoys local 3-gun, NFA, gunsmithing, MSR’s, & high-speed gear. Nathan has traveled to over 30 countries working with US DoD & foreign MoDs.

The above post is my opinion and does not reflect the views of any company or organization.


  • Renegade

    I love how some people can engineer solutions when put on the spot. This is pretty cool.

    About my only gripe with this article is that ARMagLock’s reasoning (specifically the legislation mentioned) is a bit outdated; that bill hasn’t had any movement since August and the principle author was just arrested for, among other things, attempting to illegally traffic firearms.

    • Mark

      Specifically, he made a deal with an undercover FBI agent to smuggle firearms and shoulder fired missiles in to the US from contacts he had with Islamic terrorist groups in the Philippines. In return he asked for the cost of the weapons $250,000-$500,000 as well as large campaign donations.

      Disarming you while smuggling in weapons from terrorists.

  • derfelcadarn

    Very clever, the government thinks they can legislate us out of our firearms, they are mistaken. People are for too clever for the morons in government. We will not be assimilated.

    • bbmg

      If there are morons in government, what does that say about the people who voted for them?

      • BryanS

        I never underestimate them as idiots, although many will do their best to prove me wrong.

        Better question, not for this blog, is where is California’s line in the sand?

        • allannon

          As I understand it, from current- and ex-CA residents I know or have met, the basic issue is there’s a close split between rational people and essentially San Franciscans and Los Angelenos, with a slight majority going to the cities.

          I did suggest to one they put through a motion to split the state into “California” and “Hollyweird”, to which they didn’t seem entirely hostile. 😉

          • Gunhead

            NorCal and SoCal are states within a state. Just remember who controls the water.

          • allannon

            Doesn’t seem to be helping, though. Maybe it’s time to start closing the valves.

    • supergun

      Especially when they (lawmakers) think a magazine is no good after one use, like the lady politician in Colorado thought. I think she got recalled anyway.

  • sianmink

    Better $52 to an inventive business than a penny to the California government..

  • patrickiv

    7 months isn’t much time to get from concept to shipping a finished product.

  • Studenta ot Sofia

    Is SKS an assault weapon according to that law?

    • Eric S

      As long as the magwell is welded it’s not. By crazy moonbat logic, it can be readily modified to accept a detachable mag.

      • Cymond


        First, the standard SKS is a “featureless” except for the grenade launcher on the Yugo 59/66. They’re legal even with fully-detachable magazines.

        Additionally, the proposed (and vetoed) SB 47 never addressed ‘readily restored’ or else this simple magazine button would also fail that test.

        Second, the standard SKS magazine can swing open and dump its contents, but it cannot be removed unless you first remove the trigger guard and fire control group, which would constitute “disassembly of the firearm action”.

        The only way SB 47 would have been a problem for an SKS would be if the SKS had removable magazines with a magazine lock, and it had a folding stock, telescoping stock, thumbhole stock, pistol grip, or flash hider. Note that bayonet mounts and threaded barrels are not restricted on rifles.

        • Eric S

          I have been educated. For Cali that almost seems sensible. So what law gave us the pump action AK?

          • Cymond

            I’ve seen pump-action AR-15 variants (DMPS long ago, and Troy recently), but not an AK. The DPMS was created during the federal Clinton ban of1994-2004. The Troy is new, and I’m not really sure what inspired it.

            Those unusual variants do have some uses. We cannot have a semi-auto centerfire rifle with restricted features and removable magazines in California. To be CA-legal, you only need to eliminate 1 part of that 4-part list.

            In short, choose only 3 for your rifle:
            *restricted features like pistol grip
            *removable magazine

            The bullet button and similar devices are popular because they allow Californians to have full-functional, fully-featured rifles that can still be reloaded without disassembling the rifle. A relatively uncommon choice would be to have a pump-action or straight-pull bolt-action version so that it can be a centerfire with removable mags and restricted features. It was far more difficult to build a legal AR-15 before the Bullet Button was invented so pump-action versions were more desirable.

            There were other magazine locks before the Bullet Button, but they created a true fixed magazine system. Basically, to load an AR-15 with a Prince-50 mag lock, you had to separate the upper and lower receivers, then insert rounds into the fixed magazine, and reassemble the rifle. It also made certain disassembly procedures impossible. For example, the first steps to clear a double-feed are to remove the magazine and them operate the bolt. Since the magazine cannot be removed, and the bolt cannot be shut, it’s not possible to open the receiver and clear the misfeed safely. Further, it’s illegal to transport a loaded rifle in California, so it would be impossible to take the jammed rifle to a gunsmith. The only procedure I can devise would be to remove the buffer tube/shoulder stock, extract the bolt carrier group through the back of the receiver, and then separate the upper & lower receivers.

            It should also be noted that pre-ban full-capacity magazines can NOT be used legally in guns with mag-locks like the Bullet Button. They can only be used in ‘featureless’ rifles and registered pre-ban “assault weapons”.

            Also, I meant to include this earlier, it’s a flow chart that makes it far easier to determin what rifles are or are not “assault weapons” in california. I can link to the flowcharts for pistols & shotguns if anyone wants them.

  • sapper

    This bill was vetoed. And yee was arrested for running machine guns and rpgs. We can only hope steinburg gets brought up on charges as well. The California legislature is corrupt and three have been arrested in the last few months.

    • Mark N.

      No, Yee withdrew his “bullet button” ban last session bill before it came to a vote. It is still alive and could be reintroduced this session, but as of this date it has not. With Yee’s arrest and suspension from the Senate, it seems probable that the bill is dead unless Senator Deleon (who has a “ghost gun” registration bill pending) or Darryl Steinberg decides to sponsor it.

  • MrSatyre

    And then, of course, those same states will push for laws which ban the after-market modification of rifles with said device.

    • Cymond

      That would take several years (Californians devised the bullet button about a decade ago, I think), and would be increasingly more & more difficult to write that legislation without getting thrown out in court.
      If fixed magazines were banned, the next step would be no semiautomatic rifles with pistol grips at all, which probably fails in nearly any court.
      And of course, none of this addresses “featureless” rifles like the Mini-14 (or modified AR-15).

  • allannon

    Ingenious solution to an aggravating problem.

    Has anyone thought to sue over the phrasing “assault rifle”? Perhaps as libel, as it carries the obviously intentional implication that the firearm can only be used in an aggressive manner, and therefore the owner must have ill intent?

  • JC

    How does this address the NY SAFE act?

  • Cymond

    Yeah, I remember seeing these back when SB 47 was a looming threat in California. At the time, the inventor actually worked to keep these “off the radar” by promoting them quietly. Fortunately, that legislation failed for the time being.

    • Mark N.

      It could be worse. Just think if we all had to permanently install a Prince 50 mag lock, making it impossible to reload except by pulling the rear pin and internally loading the magazine. Now THAT would be inconvenient–back to the way things were the first time ARs were banned.

  • TheSmellofNapalm

    I live in California, shoot regularly, and have absolutely no problem registering my guns. Do you know why? Because I’m not a paranoid anti-government radical who thinks he’s Bob Lee Swagger. I have nothing to hide, and with the state of things as they are, if the NSA was curious about me I wouldn’t need to register a weapon for them to have access to my information. You people are pathetic.

    • Mark N.

      If you own an AR or AK style rifle, you should be paranoid. Other rifles not so much. Last session, Yee testified that the intent of the original AR ban was to eliminate EBRs from California, and it was only because of the devious inventiveness of the manufacturers in coming up with a work-around to the mag lock issue that they are still here, a problem he intended to address with his “bullet button” ban bill. Very clearly, their intent is to ban these weapons in California. Similarly, Sen. De Leon has a bill pending to require registration of all “ghost guns,” defined as unregistered AR or AK pattern rifles, including homemade rifles made from 80% lowers, irrespective of the date of acquisition or manufacture. Which is pretty stunning given that NO rifles or shotguns purchased in California were subject to registration until January 1 of this year, and that registration requirement is not retroactive. The intent is to restrict capacity and increase reloading time to make these firearms unappetizing to the public, and at the same time increasing the potential of noncompliant firearms being seized and owners being charged with crimes that disable firearms ownership.
      Then let’s look further afield. By now, I am sure that you have heard of the microstamping requirement for “new” pistols–with “new” being interpreted as broadly as possible by the Dept. of Justice so that a replacement of a single part is a sufficient basis to require retesting and compliance with the microstamping mandate. The purpose of the mandate is to force semiautomatic handguns off the market, a is obvious from the fact that there is no way that this requirement will have any effect on the criminal misuse of firearms, nor lead to an increased ability to solve crimes committed with pistols. Hundreds of pistols have already dropped off the list, and there are more every week.
      If you do not think that your rights to keep and bear arms are under attack in the State of California, you are sadly naïve.

    • Cymond

      There have been several cases in California where they have first registered and then later full-banned certain fireams. Those who registered were forced to sell, destroy, or surrender their firearms. And I won’t get started on the problems with APPS. The simple fact is that registration has been abused before in California. It is not paranoid to think that it could happen again.

    • dan citizen

      “I live in California, shoot regularly”… part of the “in crowd” -CHECK

      “have absolutely no problem registering my guns”… compliance is acceptable -CHECK

      “paranoid anti-government radical”,,, radicalize/marginalize target group -CHECK

      “who thinks he’s Bob Lee Swagger”… credit building culture reference -CHECK

      “I have nothing to hide”… hitler’s favorite anti-freedom argument -CHECK

      “if the NSA was curious about me I wouldn’t need to register a weapon for them to have access to my information”… resistance is ineffective -CHECK

      “You people are pathetic”… dismissive wrap-up -CHECK

      So, as an astroturfer, do you get paid by the post or by the hour?

      • MJ Triola

        Dude, you’ve been waiting for “Red Dawn” for 20 years. Who’s kidding who? The ATF horror stories are like the Obamacare victim tales: the closer you look the thicker the baloney is sliced. Wait til one of your guns is stolen and the cops try and find it after it’s hit the black market. Good luck with that.

        • dan citizen

          red dawn? ATF horror stories? Obamacare victim tales? What are you talking about?

          I am not a prepper, survivalist, militia member/supporter or anything other than a hobby shooter.

          I’ve interacted with BATFE lots of times and find them pleasant and easy to deal with.

          I am not anti-obamacare.

          All my guns are registered, insured and stored in a safe.

          disliking astroturfers and internet trolls does not make a person anything other than intolerant of bullshit. Whatever you are smoking, I’d smoke less of it if I were you.

    • Drew

      Smelling napalm causes brain damage, which explains your post entirely.

    • RealityCheck

      Just follow the rest of the lemmings down to the sea, and soon, you’ll all be gone.

    • john

      Do you register your church and Bible?Do you register your computer and ink pens?Do you not understand that all this is to eventually take them in confiscation raids.What part of “Do not infringe”do you not get?Are you a sheep or a sheepdog?

      • MJ Triola

        Have you ever killed anyone with a church or walked in to a bank with a Bible and force every one to the floor? The only reason to register churches is so they don’t have to pay taxes. And you obviously don’t know about the secret codes imbedded in every piece of computer-printed paper to fight kidnapper, extortionists, and terrorists. Do you understand just how many guns there are PER PERSON in the USA? Do you understand that mail order catalogs can sell military rifles that were stockpiled in the late 1890s that are in working order? My Glock 19 is 23 years old and shows little to no sighs of wear. How many guns do you think were sold over the last 23 years?

    • Rick

      I call BS on this one.

      Like all the usual apologists, everything is OK until the party of the Administration changes. then they’re all outraged and protesting and screaming “truth to power”.

    • MichaelZWilliamson

      You need a shower.

  • rocketman21

    This piece of smian feces needs to go down hard. including the drone heads he ran with.

    • rocketman21

      sorry wrong post. r21

  • Garrett

    Pretty sure the MR2 from Rainier Arms already accomplished this.

    At the local gun shop in Rochester I stop by once in awhile, they had 20 of them on order, and all of them were gone in a week. Here is to hoping that the registration laws in NY end like in CT.

    • Assuming the ARMagLock is granted its pending patent, the MR2 is most certainly going to be in violation.

      • Jeffrey Missal

        That’s assuming that the MR2 doesn’t have its own patent…in which case the ARMag Lock would likely be in violation.

        I did a quick google search and have seen the MR2 “patent pending” design in articles/ads up to a year old. Just sayin’.

        • Marc

          It typically takes 2-3+ years for a patent (once filed, and thus ‘pending’) to be granted or rejected, so the timeframe isn’t that atypical.
          I’ve filed 10+ in the past 3 years and the first one was just granted.

        • Cymond

          I’m trying to figure out which came first. Both make claims at being the original. I genuinely cannot determine which came first and would appreciate any evidence so I know which to support.

          It seems that the ARMagLock patent was for a more complicated system. There are “anonymous” videos on youtube showing the original ARMagLock design, claiming that the current ARMagLock is a clone of the AR MR2.

          On the other hand, the current ARMagLock is really a simplification of the earlier design, so it should be covered by their patent.

  • dan citizen

    For a gizmo like this $52 is too bad.

  • spencer60

    Ingenious. Seems to be that’s been out a while though.I would have sworn I saw something similar advertised a year or more back.

  • Drew

    I have an idea. Just don’t fucking register your rifle. This device isn’t ingenious, it’s cowardly. Be a man and stand up for what is right. Oppose unconstitutional malum prohibitum bullshit, or move immediately away from that place and take your tax revenue with you.

    Will they kill you for opposing them? YOU’RE GOING TO DIE ANYWAY.

    Can’t afford to leave California? WHAT GOOD IS MONEY WHEN YOU’RE A SLAVE?

    You should be ashamed of yourselves.

    • supergun

      Best thing to do is recall the morons who make these illegal gun laws. Or vote them out. Saves the taxpayers a lot of money.

  • shaw08

    Why you guys haven’t reclaimed California yet idk but it is always great to see great minds at work. Im curious whats going to happen to all the guys (if the law passes) that keep the parts to their standard mag release, or even their bullet button releases. I know a lot of time people will buy stuff like this to be “legal” but keep their deadly illegal scary parts either in their range box or gun case. I’ve heard of people getting charged with intent of whatever arbitrary law they would violated by reinstalling those parts. For all of you who planned on doing something to that effect I’d be very careful if I were you. Or even better just move to a non communist state (the few that are remaining anyway)

  • torr10

    $52 bucks is not bad. Voting the control freak government out and installing normal, intelligent people in office….priceless!!

    • Rick

      assuming the voting itself isnt rife with fraud.

  • john

    Whats really cool is that the device can be taken out in seconds and the gun reverts to a real AR when you need one.

  • Rick

    Ah, SB 47. introduced by Sen. Leland Yee, now under arrest and indictment for corruption, murder-for-hire, and gun running (machine guns and rocket launchers).

    I bet HIS imports didn’t need mag locks

  • lomaxima


  • Marc

    So pre-ban 60 or 100rnd surefire magazine plus this = liberal heart attack? Neat.
    And speaking as an engineer, quite a clever way of implementing the device.

  • SSSN

    The simple fact is that registration has been abused before in
    California. It is not paranoid to think that it could happen again.

    Folks sitting in “free states” should pay close attention. In Oregon for example even a
    gun sold privately at a gun show is now registered with state police…complete with
    fingerprints. “Staters” have a well documented history of abusing this as can be always
    expected. I don’t buy guns at gun shows anymore.

  • CaptainGroovy

    I have a dream that all the hippie dippie idiots in California will all be together at a house built on a hillside that no house should have ever been built on and the side of the hill gives way washing them all out into the ocean never to be heard or seen from again. I know that this has about as much chance of happening as the Easter Bunny, Santa Claus, The Tooth Ferry, and Little Red Riding Hood all playing poker at Larry Flynt’s house but a person can dream can’t he.