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amt backup 380 single action manualArcadia Machine and Tool eventually purchased the design and began pumping out AMT Backups. It came to me for next to nothing, and the fact that it was a mini.380 from the late ’70s piqued my curiosity. The problem with being head of your time is often not having the technology to flesh out your idea successfully. It was a good idea, but was poorly executed. It has 5- and 6-round magazines available. I only have a 6-round magazine with a pinky extension. “ Pinky extension” being a joke since it’s still not long enough for my hand. Magazines seem to be available to this day, but they’re a little pricey. Blowback operation can be a safe and reliable means for a handgun to operate, but it has some flaws. This Backup doesn’t seem to have much muzzle rise, but it has a ton of slap to it. After firing half a box of ammo, my hand felt quite sore. It bruised the area of my palm right below the thumb. It most certainly has some snap to it. If you have compromised hand strength, this gun isn’t for you. The near-microscopic rear serrations don’t help much either. The gun uses a heel magazine release at the bottom of the grip to lock in and drop magazines. I imagine the idea of reloading under fire wasn’t really on the designer’s mind when creating a pistol called the Backup. It’s effortless to reach and use. It seems redundant, but the 1911 was the gun back then, so I’m assuming a grip safety was a selling point. The grip safety also gives you a visual clue if the weapon is cocked. Once you cock the gun, the grip safety flares outward (below). For reference, the SIG P365 holds twice as much ammo in a more capable caliber, and it’s 1.0 inch thick. The LCP is half the weight and about a quarter-inch thinner. Without a doubt, this was an ultra-small.380 ACP for the period and impressive that they found a way to make it work. Mostly. It will not feed hollow point ammunition very well and chokes on stock standard 95 Grain FMJs.http://www.magnachip.co.kr/userfiles/20201216142329.xml
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Oddly enough, if I fire it with a single hand, the gun works flawlessly. If I take a two-handed shooting grip, the gun chokes and fails to feed. The one-handed firing is 100 reliable. The slide has a trench running down the center of it, and inside the trench are the rear and front sights. The sights aren’t great, but if you take your time, the gun can be quite accurate. I managed a respectable headshot group at 15 yards. It shoots mostly up and to the right, but occasionally they launch straight backward. One got caught in my flannel shirt and gave me a brass burn on the neck. Fun times to be sure. The trigger is light with this single-action design, but very spongy. Several times I thought I had let it out far enough and found I most certainly had not. I just got in the habit of moving my trigger finger all the way out to the trigger guard. I’m betting parts are tough to find these days if it needs repairs. Even if that forward thinking resulted in a less than stellar gun. Cleaned and lubed they work flawlessly. I can get one more round in the mags but the slide won’t strip them. Lots of original handgrip and mags still around. Seemed a downright shame to toss good ammo, but if there’s no gun to shoot it, then it’s worthless. So yesterday it went into the Live Ammo can for proper disposal. I have thousands of rounds in calibers I don’t shoot at this time. At least one.50 cal ammo box full of 38spl, 357mag,.380,.45acp each. I made (cast, powder coated and loaded) at least three ammo boxes of 9mm before I built my first 9mm AR pistol. Lead is cheap, range pick up cases are free, reloading is fun. Properly stored ammo keeps long time and may come handy down the road. We sold them as soon as possible. I toyed with picking it up, but after reading about their reliability problems, I passed. Even if I don’t intend to use it as a self-defense firearm, I want it to be able to fill that role if I needed it to do so.http://shinhwacar.com/userData/board/kenwood-es547-manual.xml In the same vein, I’m finding myself only drawn to guns that are carryable (if that’s a word). For example, I can appreciate a berreta 92, but I don’t think I’ll ever buy one because I only carry really small guns. So theres that. Fortunately for me, I bought them from a friend who owned a small LGS. He allowed full trade in value so I didn’t lose any money. Sharp edges, heavy, and that gritty stainless on stainless galling feeling if you didn’t dunk it in a bucket of 30 weight before shooting it. Never gave me the slightest problem, put thousands of rounds through it. Accurate and reliable. Maybe I got a (the?) good one, but I can’t relate when I hear that “everybody” knows AMTs are garbage. Its about the smallest.45 there is. No safety, just very heavy no-nonsense triggers. With a rubber sleeve to cover the extra mag length it may be a better range toy. They never fail to fire or cycle any kind of ammo like this article highlights. Under rated pistols, but yes recoil is a problem. You don’t want anyone to see you do it, but they are fun to ride. And said it jammed a lot. Last I saw was he was carrying a 638 in his pocket(he owns an antique shop off 111th street in Chicago).I didn’t know about these. I wasn’t always but I am becoming a 380 fan, so this is a cool idea to me. It really is a beautiful gun, I wish it worked. I even like the grip safety. Isn’t there a boutique gun company that makes a similar looking gun in 25 acp. I remember seeing one in an edc pocket dump on this site. Anyway, these two remind me of each other, I think both are gorgeous. Most did not. I can recall lots of guys saying “look at this cool new backup gun I just got” and then throwing it in a drawer or selling it after they tried to qualify with it. Most of them went back to the J frames they’d been using before the Backup arrived on the scene. The only time mine ever failed to cycle was if it slipped in my hand.https://events.citeve.pt/chat-conversation/boss-gt-10b-manual-espa-ol A friend of mine had the single action like this and I still have a DAO version. The metal galling could be a problem but if kept lubed it should be a non-issue. Mine do not exhibit the signs of this issue. The Back Up 380 DAO has a heavy trigger and is a heavy pistol especially compared to all the tupperware out now. I’ll admit though that I’d pick the Colt Mustang over the AMT every day of the week. How is the trigger on the DAO. Is the hammer exposed or internal? It does not protrude outside the slide when at rest. Trigger is long and on the heavy side which it should be. I still have one of these in original packaging. If I remember right the gubment stuck their nose in this and it was altered to not cover the slide completely. It’s relegated to the collectors stuff along with the pistol. No reason now to carry either with all the modern alternatives and certainly no reason to pay the gubment for permission to carry it. But thank for the info. It had an annular ring cut in the chamber to slow down or momentarily lock the the rearward movement of the slide. I have always wondered if this gun worked and was reliable. Loved that gun, but always wished I could have gotten both. If the Mustang had come first we’d never have heard of the Backup. It was near-impossible to damage it by sitting down on it, no matter if it was hard concrete you sat on. Hornady defense with the polymer ball feeds reliably too. That being said, I don’t carry mine and I won’t sell it because I am concerned that someone might bet their life on it without the aforementioned care. Like 10s of millions of them. I have this version. Light grease the rails. You also need to ensure the Grip screws STAY TIGHT as they retain the trigger bar and trigger. They will fall out of the gun. It is for that reason you will find examples for sale that are missing those parts. I’ve found the firing pin cracked and replaced it as the only mechanical failure.http://pillangovendeghaz.com/images/95-grand-cherokee-repair-manual.pdf Bought used I don’t have a total round count but I’ve put over 1K down the pipe and don’t feel the recoil as sharp or snappy. More than a 22LR and less than a 22Mag pistols. As it’s a spitting distance gun and extremely small, I’ve never tried two handed firing and can’t address authors operational failures there. From many other reviews over the decade: reliability is all over the place. Three Mfrs and tweeking the production line led to ups and downs. I can only address my experience and the only time I had issues was early on before I figured out it REQUIRED more than cursory lube. This is deadly important if you have it in a defensive role. Disassembly is a pain but its your neck on the line. After two decades of service, I finally retired mine to the Safe as a “Keeper”. I replaced it with the much larger larger G42. I could put the muzzle in the coin pocket (blue jeans) and grip under my belt! Slide over travel provides both a margin in gun dynamics (reducing ammunition sensitivity) and provides time for the magazine to elevate the next cartridge fully into position. It is not fully presenting the fresh cartridge with sufficient rapidity, unless the gun dynamics are slowed down with a loose grip. They are all 40 years old now. No one ever cleans and lubes them. So they are all dirty and dry. This, and their sensitivity to ammunition, explains the variety of experiences shooters have with them. Worked most of the time. Recently, my father in law fabricated a new firing pin. 100 rounds later, feeds modern fmj fine. Don’t remember it being so painful 4808 Last I heard a weld broke, maybe at the barrel. Not sure, lot of years ago. He fixed it or AMT did or hey swapped it but in the end my relative sold it. Awful trigger, felt like sand and rusty springs and possibly some twigs from a bird’s next in there. Maybe I should have tried improving the trigger, and made a pocket holster out of leather with a riser to hang off the belt into the pocket. I thought about doing that stuff. But, what it comes out of is the key. I’m partial to Berettas especially the Italian Army officer’s varieties. I’ll keep checking gun shows till I find the right one. Check out the Seecamp.32. And its super smooth DAO trigger was also ahead of its time. It’s the only one I’ve ever seen and I have no idea if they made anything besides the 1911. Anyone with knowledge of this please share. Galina assembled what guns they could from existing parts, no info if they actually made some parts to complete some. Savage sold the parts in bulk (Numrich) and repurposed the machinery. A lot of the bigger name Mfrs have had problems. I, like most folks believe guns should be 100 reliable from the box but that’s simply not the reality in the 380 Backups day nor now. So in fact (it looks like) Galena was the last to sell complete AMT pistols. Shoots very well but, as with the AMT (IAI) Longslide and 380 backup it’s relegated to the safe as a collection piece. It’s ok though because I have several 1911 pistols to take out and have fun with. Loved that gun, but always wished I could have gotten both. ????? ?????? ???? ???? I like the weight, helps with the recoil not like the plastic ones today The gun will not fire with a round in the chamber if accidentally dropped Happened twice then I got a new holster hat won’t let it slip out. The DAO AMT Backup most certainly WILL fire if dropped on its muzzle onto a hard surface from a height of three feet, i know this because i saw it happen to my gun, which i assume means that it COULD very likely happen to any gun of this model type.And since I myself had that event occur, I have some limited data on the potential result, and that is: THE GUN CAN AND DID FIRE A ROUND. Period, that’s all I am saying. If it it happened with my AMT.380 DAO, (admittedly a sample of only one unit), then I think we can agree that such a discharge is at least possible, if the gun lands muzzle down. Barrel pointed up? Whi knows, maybe not. But I sure wouldn’t want to be looking down at it if it did land muzzle up. Whatever the reason the pistol discharged, whether due to design limit or defect, I think one should consider the potential risk of an accidental discharge on a dropped DAO AMT.380 very carefully before they choose their loading status and mode of carry. When it worked it was fast, reasonably accurate and felt good in the hand. 3 trips to factory, 2 trips local gunsmith all failed to get reliable function. I’m curious, is it possible that they corrected some of the earlier problems with a later model. I ask because mine is a AMT Backup II, what do you think, is this a revised model? Smooth to the touch, lovingly worn in, always reliable and accurate as hell. But no other gun measures up to the sweet thing that we’ve shared for the past 30 years.I don’t think it’s particularly dangerous since it’s very stiff to move and probably can’t be disengaged easily, in addition to the grip safety. Just something to note. Notify me of new posts by email. It was first manufactured by the Ordnance Manufacturing Corporation (OMC) of El Monte, CA. The first guns made in.380 ACP by OMC are known as the OMC Backup.You can help Wikipedia by expanding it. v t e By using this site, you agree to the Terms of Use and Privacy Policy. It may not display this or other websites correctly. You should upgrade or use an alternative browser. I have done an online search and all I get is information about lawsuits against this company.I have also gleaned bits and pieces regarding the safety of handguns manufactured by this company.It looks to be pretty safe to me due to the long and hard trigger pull.Does anyone know why these handguns are considered unsafe?Any information that anyone can give me would be more than greatly appreciated Thanks! CherylOn the side of the slide of the pistol will be engraved either the number.380 or 9 mm. This is how you can tell the caliber of the pistol that he has. If you go to these two websites: (click on AMT Backup) and (click on download AMT Backup owners manual) you can download the owners' manual for each pistol. This will have the disassembly and cleaning instructions. The 9 mm is easier to disassemble and clean than is the.380. I have, or have owned, AMT Backups in a number of calibers. I currently still have DAO Backups in.380 and 9 mm. AMT had some quality control issues, but I have had good luck with every AMT that I have bought, and I still carry mine from time to time. If you have any other questions, please post and I will try to help you.AMT replaced my safety with a new design that addressed the problem, but I never felt good about the gun after that. This was in the 1980's.I took the gun to a competent smith and, after discussing the wonderful metalurgic qualities of cheap pot metal, asked him to destroy the gun even further. There are some guns that might be fine at the range but I would never bet my life on (Taurus), and some guns I consider to be risking injury and death just by loading them--AMT.As previously mentioned, AMT has had a long history of quality control issues. I have had a couple problems with my 380 Backup, but nothing that would be considered dangerous of life-threatening. Of course, printing confusing caliber info on the slide of a gun might be a further reflection of this company's mindset on the whole safety thing, but that's something for you to decide. To take down your AMT you would need to drift out the roll-pin that is located on the slide just above the serrations. Another place to look for schematics on firearms is Brownell's. Follow the link: If registering, leave this blank: Neither The High Road nor any of its directors, members, managers, employees, agents, vendors, or suppliers will be liable for any direct, indirect, general, bodily injury, compensatory, special, punitive, consequential, or incidental damages including, without limitation, lost profits or revenues, costs of replacement goods, loss or damage to data arising out of the use or inability to use this forum or any services associated with this forum, or damages from the use of or reliance on the information present on this forum, even if you have been advised of the possibility of such damages. By continuing to use this site, you are consenting to our use of cookies. We simply provide this information as a resource for people who may be in the market to buy or sell a handgun, or who are simply researching a particular handgun model.Registration is free. Extractor on top of removable bolt rather than on the side of the slide. Barrel is welded to the frame. One reason for the round's success is that it is the largest practical cartridge that can be easily adapted to small automatic pocket pistols. Ballistics fall far short of even the 9mm Luger, but still prove adequate for most self-defense situations. The round has established quite a niche position in this role, often being chosen over more traditional small calibers such as the.25 and.32 Autos. All main parts of the model are separated objects. Therefore, you can easy change all materials. You're not bulletproof. The standard sized Hardballer’s are a bit uncommon. Although AMT went out of business over a decade ago, High Standard bought the production rights. The sale starts Friday, January 17 and runs through Saturday, January 18. Pawn Shops Near Me that Sell Guns. AMT Backup 9mm Kurz (.380 ACP) AMT Backup AMT Backup handgunsforsaleguns.com - handgunsforsaleguns Resources and Information.From general topics to more of what you would expect to find here, handgunsforsaleguns.com has it all. We hope you find what you are searching for. Pinterest Explore Log in Sign up Privacy. This early variant was produced in.380 ACP caliber in El Monte, California.This pistol was designed to be carried as a backup gun by law enforcement and security professionals or anyone desiring a small concealable weapon. If so, please create an account, to become a Premium Personal member of Armslist. Fortunately, despite this, we are working hard to make the site MUCH better for law abiding Americans, and MUCH worse for those that are not law abiding Americans. Scammers have tried to prey upon Armslist users in the past, and while we may not eradicate their presence 100, we will eradicate the vast majority. People have complained of impolite offers and communications from users with bad manners. That will be nearly eradicated with the new version of the site. And lastly, the financial, emotional, human, and other costs of the never-ending legal assaults on Armslist have made it impossible for us to keep the site free in the way it was in the past. Thank you for your support, and welcome to the new Armslist.com.It was first manufactured by the Ordnance Manufacturing Corporation (OMC) of El Monte, CA. The first guns made in.380 ACP by OMC are known as the OMC Backup.Hours are Tuesday- Friday 11am to 7pm and Saturday 9am to 7pm Our gun prices are OTD and we offer 3 off with cash purchases on guns. Please call the number listed and leave message if no answer. -BEFORE PULLING THE TRIGGER ON YOUR NEXT GUN, GIVE US A SHOT AT EARNING YOUR BUSINESS!- This can take a few seconds.ARMSLIST is NEVER involved in transactions between parties. Review our. For a better experience, please enable JavaScript in your browser before proceeding. It may not display this or other websites correctly. You should upgrade or use an alternative browser. Anyways, I'm not new to stripping guns but this things is a PITA. After glancing at it for a moment I took an educated guess and punched a pin. Wrong move. This thing immediately falls out. I've yet to even get the slide off (I put it down before screwing it up worse, if thats possible). I was about to throw it in the trash when I had the first good idea of the night. Gun forum! I have been meaning to sign up to one for a while now and after some browsing, picked you guys. Though after this first post you may feel this is bad news, I promise I'll attempt to contribute positively to the forum. Thanks a lot guys and gals! Click to download, then save it to your computer. EDIT: Now that I've read it more closely, however, it looks like disassembly (page 8) only covers removal of the slide; I'm thinking the pin you punched out was in the frame, right? (The part that fell out appears to be the ejector, and I believe it is frame-mounted). Remove the slide using the procedure in the manual, so you can see and access the slot in the frame where the ejector is usually mounted; tap the same pin part-way out, then hold the ejector in place (hook-shaped-end on top, pointing toward end of barrel) while someone else taps the pin back in. Assuming that pin doesn't hold anything else in place which moved when you took it out, you might be good-to-go. Good luck! As you noticed it's pretty vague though. Thanks for your post, I appreciate it. When I get this thing sorted I'll post back with what I learned.Tool companies make special roll-pin punches, and if you can buy or borrow a set of those, that would be best, but a close-fitting normal punch will do if used with care. Once you've removed the firing pin and spring, then you can use a hammer and non-marring punch (manual says aluminum or brass, but I think a sturdy nylon punch would work too) inserted in the bottom of the frame (where the magazine normally goes). It's easier to do if you've seen how they were situated in the slide before falling out. Reassembly is fairly well-described in the manual, and after taking it apart, you'll have a better feel for how the parts go back together. It looks like you're pretty good with that digital camera, so feel free to take photos as you go so you can refer back to them later, if you think it might be helpful. I did this when I tore apart my last vehicle engine, and it makes reassembly go a LOT smoother if you can see what it looked like before you ripped everything apart.:mrgreen: There was a 3 or 4 month waiting list to get the weapon. It was called the AMT Backup. I assume it meant that you should back up when you had it out because there was an excellent chance it would not fire. I was amazed when I did the field strip the first time to find out that there was not a single machined part in the weapon. They made use of the (then) latest and greatest in metal working--investment casting. Only the slab sides of the slide appeared to have machining done on it, but when I showed it to our toolmaker he said that all they did was run it through a Time Saver (belt sander) to give the appearance of some machine work. On your sample it looks like they abandoned even that effort. (Mine was very early production--the later stuff was about the same but I don't know about the window dressing on the slab sides of the weapon. I assume this is a later production weapon). I gave it up because of repeated failures to fire. You'd pull the trigger--but no noise, just a click. I had the gunsmith go over it a few times but finally he just shrugged his shoulders and gave up. I don't know if the design was faulty or if the the incredible amount of guns that they tried to ship in such a short time frame compromised the quality, but everyone I knew back then gave up on it. It was really the very first of the very compact weapons. The execution left something to be desired. I haven't been able to mess with it since taking those pics and I guess that worked out for the better. I owe you a beer:drinkers: Most of that is inside, where you won't see it until you strip it. Although the.45 Backup has a heavy DA trigger-pull (which I've lightened and smoothed by some simple-to-do, kitchen-table polishing) my little gun is quite accurate at the shorter ranges for which it's best suited. I think that I can turn it into a reliable pocket gun for my wife. Let me know. This is not as bad as it might sound as unlike a revolver which requires very tight tolerances to function at all, often times loose tolerances on the slides of an automatic will function fine. I never took the rest of the weapon apart so I don't know if there was any interior machining. I read that the designer of the weapon designed it around the investment casting technology. Stainless steel is much harder to machine than carbon steel. It simply does not mill easily and it chews up machine bits quickly. Early stainless steel weapons were machined from the same forgings as the carbon steel weapons and there was a lot of material to remove. The early stainless steel weapons were vastly more expensive than the blued ones. The investment casting technology made very accurate parts and only needed small amounts of machining to finish weapons. It is not as strong as a forged frame but if the sections are beefed up properly it can be fine. The AMT Backup was a brilliant concept. And I think the factory could have made mine functional. But at the time there was supposedly a full year backlog and I was not willing to wait. An exact model of the part to be cast is created in wax. Usually by pouring the molten wax in a mold. Then the wax part is placed in a very fine sand that is slightly damp. A passageway is created for which the molten stainless steel is poured. The stainless steel quickly melts and vaporized the wax and it takes the exact shape of the wax model. This is an improvement on sand casting in that the wax model ensures that none of the sand will be displaced. Very accurate parts can be made and the tooling is very cheap.Here is a subject about which you are really an expert, and you have written a simple, clear explanation of the lost-wax process that any lay-person can understand. Thank you! One thing you forgot to include: IIRC, Thompson-Center pioneered the use of this process in the gun-manufacturing business. Or was it Ruger? Or both? The process has been around for a long time. They were able to make multiple pieces with a single pour. Certain metals were easier to cast. Aluminum alloys and stainless were successfully cast. I don't think they cast carbon steel. Forgings are far superior to either cast or billet production. In a casting the grain of the steel is not oriented in any one direction and the strength is uniform in all directions. With forgings the grain can be oriented and give much greater strength in certain directions and if properly done it will greatly enhance the strength of the piece. So for future reference, it can be done. Good riddance! Anyways, I'm not new to stripping guns but this things is a PITA. After glancing at it for a moment I took an educated guess and punched a pin. Wrong move. This thing immediately falls out.I have one in.45acp and really like it. It is very safe. It has a discharge safety that keeps it from firing unless the trigger is completely pulled. The guy is in the UK but he has good stuff on his site. Regards; Al:mrgreen: For one, he states that the Backup is available only in.22 LR and.380 ACP, but he published the.45 ACP version as his illustration. Jean and I will be away, visiting our granddaughter and attending a family reunion, from this Saturday, April 23rd, through May 9th. I'll see all of you again on May 10th. In that regard they were brilliant. Many gun manufacturers have since done the same, but most not to the same degree. As with anything else, if you try to rush, you are going to make errors. Their later weapons from what I've seen have been well-regarded, and (I believe) the manufacturing problems with the Back up were resolved after the initial rush of production was past. For one, he states that the Backup is available only in.22 LR and.380 ACP, but he published the.45 ACP version as his illustration.In fact I went back to glossover.co.uk and looked again and still didn't see it. The original AMT Backup single actions were offered only in.22LR and.380ACP. The.40, 9mm and.45ACP weren't produced until they went to the DAO pistols. Any favorites in your collection. Any owners here that care to comment on the quality of the guns. The only AMT I've ever shot was a Lightning, a close copy of the Ruger MkII. Are these reliable, or there so many of them in pawn shops for a reason. What other calibers did they make them in? Extremely heavy trigger pulls, but otherwise no problems. Had one worked on by a company armorer, who smoothed and lowered the trigger pull to around 8-10 pounds. Used it as a backup for 3-4 years on a daily basis. It always worked fine. One of my sisters is keeping it for me now. Maybe I'll get it back in a couple years - if I'm lucky. It functioned well with the right ammo. I sold it to a deputy when I was recalled to active duty. Regards, Rich Extremely heavy trigger pulls, but otherwise no problems. Beat me to it, although I had only the one in.45. Heavy as heck trigger, but the rounds went where I wanted them to.:up. It wouldn't function with standard velocity fodder at all. Failures to feed and stove piping were common. Just not enough slide velocity until I went with the fast stuff and then it was reliable. I didn't have it long. As soon as my Mother saw it, she liked it so I gave it to her.:) Lastly, they were not very accurate and hard to take apart for cleaning. I would not own an AMT.380 or 45acp. I am sorry that I do not hold either in high esteem.