Bergmann-Bayard M1910/21 Mechanics

hi I'm Ian thanks for tuning in to another video on Forgotten weapons comm today we have my favorite of the old-style automatic pistols we have a bourbon barrel 19 10/21 these were the most heavily developed of the Birdman design pistols this particular one was a model adopted by the Danish army in 1910 they bought about 5000 of them made in Belgium and then World War one broke out and weren't able to get anymore after World War 1 in 1921 1922 they decided there were a few few little tweaks they wanted to make to the design and they wanted a few more but at that point they decided to build them in Copenhagen instead of Belgium so this is one of the Danish made examples it's got some modernized features to it the basic improvements they made at that point they increase the width of the grip makes a lot more comfortable to shoot you can see that has a fairly wide grip even by today's standards they added some extra material to the extractor to increase its strength keep it working a little better and then there were some minor changes to the sights few little details these are I think really quite fun to shoot and we figured we would take this one show this one for you today and take it apart and see how it works so the first step in this assembly of course is to unload the gun take a magazine out check the chamber and it's empty on this particular design there is what we have to do is remove the bolt and then the the whole top slide will come off so the first step in disassembly of the Burgman is to take out the firing pin right here which is done by removing the retaining pin which is actually a cross pin running here in the cocking handle this is another one of those cool designs if you don't do it quite right you can shoot the firing pin across the room so the firing pin comes out we now have a mainspring captive inside the bolt here so I'll go ahead and take out the the rear sight which acts as the retaining piece for the mainspring it slides forward and pops out you can see it's got a hole in it for the firing pin so when the gun is completely assembled the rear sight holds the mainspring in place and the firing pin holds the rear sight in place now we can pull the bolt assembly out we can pull the top slide out we can pull out the locking piece and that is pretty much a field stripped bergman 1910 so we grip frame here obviously this has the fire control mechanism inside it that wasn't something that was intended to be field-strip we're gonna leave that alone for the moment we do have the ejector slides into the frame there on the belgian made guns of this type that barrel was actually an integral component manufactured with the slide assembly when the Dames went and made their changes one of the other changes they made was to make the barrel a separate component that would thread into the slide which makes it much simpler to manufacture these are still fairly complex and expensive guns but it's simpler if you don't have if you can deal with the barrel separately at the recess here where the locking piece moves in the slide and one other element of note here when the when the gun recoils and retox itself it's actually this metal stud that's pushing the hammer back it's not actually any part of both itself the whole assembly of this gun is kind of like a jigsaw puzzle where one you have to fit one component it into the next and then that into the next into the next and so on the bolt itself is fairly using all of that complicated other than how it relates to the other parts you have an extractor on top there's a cutout here for the mainspring and you have locking lugs on the bottom now this works in conjunction with the locking piece here that slides over and when I hold it down it'll move freely across the bolt but I can also push it up into the locking lugs so with the way this functions in the gun is when the slide is fully forward this locking piece is cammed upwards and locks the bolt into the slide then when the slide moves backward this locking piece gets handed down and it's only moving less than 1/16 of an inch when it comes down but it's enough to unlock and allows the bolt to then travel backwards inside the bolt when the guns fully assembled we have a firing pin the firing pin runs inside the mainspring which keeps it in place the firing pin acts as a spring guide there is also see the firing pin is reduced in diameter up here there is a firing pin spring on this gun as well that prevents the gum from Siam firing at the moment the firing pin spring is nested inside lanes Franklin to get it out but that's how the gun works there's a second small string on here to keep pressure on the firing pin backwards one of the the tricky parts of assembling and particularly reassembling this gun is that in order to before you can put the firing pin in you have to put in the mainspring retainer which means you have to compress the mainspring up enough that you can drop the retainer in place well there's nothing there's no guide on the mainstream at this one and it has a tendency to kink so it kind of takes three hands to compress the spring and hold it down in place and then drop the rear sight all right so let's go ahead and do some reassembly of this piece we start with the slide mechanism and we're going to put the cocking piece I'm sorry the locking piece into it there is a semicircular recess there which matches up with the pin and top we'll slide that in and this assembly drops on to the frame of the gun next step is to insert the bolt now in order to get the bolt in the gun has to act like it's unlocked that gun has to be unlocked which means the slide has to be all in the back now if you push the slide forward the next step is kind of the first real tricky one putting in the rear sight which is the main spring retainer to do that we have to compress the mainspring in basically I'm going to push the mainspring in until it's past the rear sight the high-tech tool out now at this point main spring is in there but I can't pop the gun because if I do the spring will pink all up because it has no no guide to it the firing pin acts as the mainspring guy so we'll put that you know now the last step is to depress the firing pin in so that we can put in the firing pin retaining there we go and now it hardly looks like there's a pin in there at all just looks like the other thumb grip for the copy no so the 1910 Bergman has some notoriety is being really the longest lasting at these very early modern automatic pistols he's refused by the Danish army until 1946 when they finally exchanged them for browning high powers it's also my perennial favorite of the old guns I really think it's time to go out and shoot it thanks for watching

Channel: Forgotten Weapons

Views: 28,996

Keywords: Denmark, danish, bergmann, m1910, 1910/21, mechanics, history, collector, collection, 9mm bergmann, 9x23, tojhous, Bayard, Bergmann-Bayard, forgotten weapons, pistol, handgun

Id: 8bldFolgIhA

Length: 10min 42sec (642 seconds)

Published: Tue Oct 04 2011