The ECM not only provides mechanical support, but also mediates numerous biochemical interactions to guide cell survival, proliferation, differentiation, and migration. These parts allow you to easily check the progress of your machining without causing lots of leaks like the original. The FGC-9 is a 9x19mm pistol caliber carbine that is made mostly out of 3D-printed components, utilizes an AR-15 fire control group. Using a DIY ECM barrel of equal dimensions but standard. You’ll find the most common symptoms of a bad ECM listed below. ECM works sort of the opposite of metal plating - instead of taking metal ions from a reservoir and putting them on a the. 16" ECM barrel length conversion. The Gatalog Presents: Do-It-Yourself Electrochemical. Home made barrels and ammunition. 57”)/ (14. The barrel can be rifled polygonally through electrochemical machining. ECM has been around for ages, and its been used on rifle barrel for equally as long. The Shopping List for ECM v2. The Idahoan demonstrates a do-it-yourself version of the button rifling process for making a rifled pistol barrel with minimal tooling. Ivan says he achieved 3-inch groups at 25 yards, using his test fixture and commercial ammunition. It's for one of 3 reasons, you like to build stuff and tinker, you can't get barrels in your country, or you plan to make several. ** When you click on links to various merchants on this site and make a purchase, this can result in this site earning a. The wine barrel flower pot. Explore a whole universe of videos on Odysee from regular people just like you!File Drop – AR15 Gas Block Pinning Jig. We're UK based engineering business that offer high-quality rifle barrels, machined parts, cut rifling and button, drilling and any other barrel related products. Coopering is an ancient trade, well known to the Romans and mentioned. Ramped ECM Barrel – Non-threaded. Improved ECM Barrel Fittings. Tags Benjamin Akela Barrel and Rail Support. This video is a summary of Project ButWhatAbout's Barrel quest. 1919 "ecm rifling mandrel" 3D Models. How Zero Sievert Weapons Work The various Zero Sievert weapons will be your primary line of defense against the hazards of the wasteland. {"payload":{"allShortcutsEnabled":false,"fileTree":{"assets/guides/DetDisp_ECM_Rifling_Guide/Project-ButWhatAbout-ECM-9x19-Barrel-DIY-V1-Package":{"items":[{"name. Employing a special machine solution in the PI machine produces high-precision internal geometries on short and long. 7 TBI's are all the same CFM with 1 11/16th bores. Boring setup. Print with 100% infill preferably PLA or PETG. My concern, and the reason for my long winded post is that you might not need to drop 200 bucks on a barrel. Do-It-Yourself Electrochemical Machining v2. Barrel OD absolutely HAS to be 16mm. It seemed to be a snug fit in the bushing. . If your enterprise company is regularly. The rifling of a barrel is the spiraling pattern of grooves inside of the gun barrel that imparts spin to the bullet as it travels from the chamber to the muzzle. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Topics. We’ve tested out a few of their products, a Glock barrel included, and really liked what Grey Ghost offered. Comes rifled and chambered for 9mm. You just need a 1/8" thick steel disc that's the same diameter as the ID of the tube, with a chamfered hole drilled in the middle for a flush-fitting flat. IvantheTroll goes over making a barrel ECM stylee Come join us at :The purpose of a rifled barrel is to stabilize projectiles for accuracy. e. ) instead of adding material, we remove it. 0 and 5. This is currently the best 6-inch 1911 barrel on the market. An example of an ECM Jig using 3D printing and copper wire by FOSSCAD ECM V 2. Ideally it should have yield strength upwards of 110000 PSI. A prominent experimenter of. ECM Barrel Tutorial –9x19mm By IvanTheTroll. General Motors introduced electronic throttle, or drive-by-wire, with the LS1 engine in the 1997 Corvette. ImmortalRevolt ecm 3. The making of the barrel is therefore begun to the sound of numerous expert taps of the hammer by the cooper who, adjusting the staves one by one, gives the barrel its shape, aided by the barrel-raising hoops. A community dedicated to the discussion of 3D printed guns and related topics. Once it gets out of beta, I'll make a complete build guide. Thingiverse is a universe of things. Home; About; Products. Hammers; Guide Rods; Extractors; Chromium Silicon Springs; Tools;. After cutting, making additional barrels will consist of a simple setup, and turning on a couple of switches. . Multiple-groove, straight rifling was formed successfully in 7. Try again in a bit. Barrel Twist Rate – is the inches a bullet needs to travel in order to make a complete revolution. 0 guide. You cut until you reach the desired depth, than you turn the mandrel 180 degree and cut for the same time duration. section of the barrel. Disadvantages: Button rifling creates stress in a barrel; high-quality button-rifled barrels must be stress-relieved after rifling. ECM has been around for ages, and its been used on rifle barrel for equally as long. Hi, I bought steel pipes for the FGC-9 ECM barrel, but as the manual says that materials with a yield strength lower than 70K PSI can be dangerous…2. DISCLAIMER: If you att. Shit_On_Wheels • Additional comment actions. Contents Introduction:. Additional comment actions. lbry. For a Numrich 0. 2023 MakerBot Industries, LLC. Past range tests show the first test barrel to have the accuracy on the range from a test rig of 3inch group at 25 yards they quote Glock factory barrels will average 2. And you have to make the charging handle. The 454 is larger with close to 2 inch bores. , , Download: free Website:. The end result is a package that coaches the user through how to use their 3D printer to aid in electrochemical machining of a stock-sized steel tube for the purpose of creating a 9x19mm barrel. Discover The Material Selection Guide by Sculpteo. In a process that eliminates the conventional machining of metal, rifling is formed by wet-etching the interior of a barrel under an electric current. A community dedicated to the discussion of 3D printed guns and related topics. 0 Barrelmaking Overview For the download package/documentation to. 【P-02-005-1】G&G Barrel Covers XL Promotional items---【G-12-047-1】G3 MOSFET Master Remote Controller Part & Accessories---【G-12-047】G3 MOSFET Standard Remote Controller. 0 coins. The tubing I am using is 230mm (~9in). barrel. This video is a high level overview of what Electrochemical Machining (ECM) is, how it works, and how the process can be applied to home gunsmithing in order to make. Contact. An operator aims the barrel at an optical pattern on a nearby wall. 5in groups at 25 yards fired from a bagrest is better accuracy than a Glock 17 (which has an equal length barrel), velocity in a blowback was 1100FPS (same ammo in a Browning Hi-Power was 1250FPS). I’ve chronographed these ECM-cut barrels (albeit in a blowback action) against a GLOCK 17 (both the G17 and my ECM barrel were 4. A Guide for PAYDAY 2. RoyB Member. Click to find the best Results for ecm mechanika Models for your 3D Printer. The evolution of content management is here. We would like to show you a description here but the site won’t allow us. In this post, we will talk about another process that also uses electricity, named Electro Chemical Machining (ECM). If so that limits the types of barrels you can make, no locked breech pistol barrels because those have to start out as billet for all the tilting ramps etc that go under the bore. 3D printed firearms have come a long way since their inception. Uzi barrels seem to fit the FGC9 mk2 with a little modification. Defense Technical Information CenterYou can make your own custom barrel for the FCG9/Mod9. Are somewhere out there files for using the ECM barrels in the mod9? I already sett sails to the odd sea but couldn't find anything related to the ECM barrel problem. Out Of Stock. Get a couple of cables and locate the car battery. The ECM is an Automatic rifle in Zero Sievert. The differences come in with the way the rifling is put into the barrel and how the lands and grooves (high and low spots) are machined into it, and the pattern of lands and grooves. add to list. the EZ22 0. Using a DIY ECM barrel of equal dimensions but standard rifling twist, this ammo did 1000FPS. 0 Barrelmaking Tutorial. Technician B says that a truck chassis data bus can be accessed using a 9-pin data connector. . . The first test barrel was made using commercial available metal tubing purchased off the shelf to ECM rifle what essentially Glock barrels. wiggle it about ¼ of the way to the large diameter (0. Keep in mind that raising the fuel. 5mmID using ecm. 56 diy barrel. Glock barrel fits great and looks great in my opinion, plus at Bear Creek Arsenal they have threaded G17 barrels for 65 dollars. Black. . Surprising to see a new barrel company in England utilizing this old specialized. Electrochemical machining, or ECM, is not to be confused with electrical discharge machining, or EDM. Explore a whole universe of videos on Odysee from regular people just like you!The ANOCUT company of USA can machine 7. 5”(114mm) but what if you want a longer barrel like 16” I can’t find info anywhere as I am also interested in the proto barrel. If so that limits the types of barrels you can make, no locked breech pistol barrels because those have to start out as billet for all the tilting ramps etc that go under the bore. 0 Barrelmaking package is officially released! It will teach you how to make your own barrels at home - affordable, easy, and with the end result having factory levels of accuracy, reliability, and performance. And from that stand point, if you live in. section of the barrel. 1920 "ecm rifling" 3D Models. Wondering if anyone has experience making an 18” barrel using the ecm method and whether there would be any potential issues doing this ? Advertisement Coins. The Gatalog presents: Electrochemical Machining (ECM) is a comparatively simple and cheap process, especially with modern 3D printing. 9mm. ARES Kar98K Sniper Airsoft Classic Rifle - Steel Version with Scope and Mount (Spring Power) $535. Ideally it should have yield strength upwards of 110000 PSI. This also has groove and bore tolerances that hold to an amazing . 16" ECM barrel length conversion. D. One with 8mm Inner Diameter and other with 8. I used a Savage . THIS WILL RUIN ANY ATTEMPT AT ECM-RIFLING ! Metal fileYour browser does not support HTML5 video. As an example, my XS25 pushes an 18-grain pellet at about 680 fps, whereas a . Tags Benjamin Akela Barrel and Rail Support. ago. tv has been retired. So I just started an FGC-9 build. 00 Your Price: $324. Sign In. Fibrosis is a major risk factor for developing cancer, including hepatocellular carcinoma. At this point, you. THE Stealth Build [ENG/GER] This is the best stealth build to have in Payday 2 in general. Making your own barrel, making your own mags, the press they’re getting. To finish, the outside of the barrel is planed smooth with a flat draw knife and sanded. Then pass a reamer through the barrel to establish your Bore size to remove any surface imperfections and control the inside diameter of the barrel fro m one end to the other. Immortal revolt has a ecm pack out with . barrel. It runs about $120 to get set up to make a barrel so it's pretty close to buying a barrel, once you're set up its around $15-25 per barrel. The Celect fuel system produces systematic pressure throughout each injection cycle unlike the common rail fuel system of the 855, or older M11 or L10 models. unicamp. This area of the barrel is the throat. Follow the screen prompts. 5mm Wall thickness: 10. Every Day new 3D Models from all over the World. Wood is harvested from trees hand-selected by the cooper, or barrel maker, to ensure a uniform and water tight final product. Mechanical cues from the extracellular matrix (ECM) regulate cell fate and behaviour through cell–ECM mechanotransduction. Attachments in Zero Sievert modify the stats and behavior of your weapons. Home of the Wilson Combat 1911, EDC X9, WCP320, and more!74. Business, Economics, and Finance. ago. These parts allow you to easily check the progress of your machining without causing lots of leaks like the original. This video is a summary of Project ButWhatAbout's Barrel quest. To put it simply, ECM is using saltwater and a conductive material like copper wire in order to rust the rifling grooves in a controlled manner. For special throating needs, separate throating reamers may be used. These parts are improved fittings for the FGC-9s electrochemically machined barrel. III For Combat Machine Part & Accessories---I'm wondering how much of a headache the 1911 AUTO PRE-FIT MATCH-GRADE ECM BARREL KIT in a ramped 9mm from Nowlin will be in a 9x23 Springer Mil Spec. ). The command remains the same for other versions but includes a numerical value at the end, like ‘/give @p. Topics. ECM is the ideal technology for machining rifle barrels. The Payday series is a game that's always taken pride in it's in-depth stealth mechanics and. . Using a Square Carbon Fiber tube, printed jig, printed tools, dremel, hardware store nuts, Oem Bolt and Barrel, ar15 fgc, Glock mags. Wood is harvested from trees hand-selected by the cooper, or barrel maker, to ensure a uniform and water tight final product. 1 more reply. An ordinary Glock pistol. The crankshaft position sensor is used to determine where the engine's position is and when the plug will fire. The adjustable ECM power supply alone costs 70 Euros shipped. lbry. 5 to 2 weeks to build. 68". Make a Factory Quality 9mm Rifled Barrel in your Kitchen Using Salt Water and Electricity (ECM) -. 113. Then drill press for the chamber. What are the four components required to consider a successful ECM engagement? a. The rifling of a barrel is the spiraling pattern of grooves inside of the gun barrel that imparts spin to the bullet as it travels from the chamber to the muzzle. I have plenty of flock buddies so access to cheap barrels, cheaper than buying the power supply and pump but I'm still considering it. Yes you can, the only downside is if it's a progressive gain rifling mandrel, you won't end up with your final twist rate. Doubt they could handle the pressure safely. This is the normal key position when driving. Could not get a user ID. 10 times, then ¾ of the way 5 times, then back and forth along the length 10 times to smooth things out. Who is correct? Both A and B. 5in groups at 25 yards fired from a bagrest is better accuracy than a Glock 17 (which has an equal length barrel), velocity in a blowback was 1100FPS (same ammo in a Browning Hi-Power was 1250FPS). Had to make some self centering inserts for each end of the bolt to hold the steel rod in the center of the hole during the boring process. Technician a says that a truck chassis data bus can be accessed using a 6-pin connector. 5", chamber, and crown. 99. 1. The electrodes are easily DIY and the setup is basically a power supply and a bucket of salt water. com 2. PY2A’s PMAC fitment time. Link to my other guide, which has two very basic and boring stoic builds. That article is all about the specific challenges of ECM on Titanium, due to the tendency to develop passivation layers. Both of these new barrels would have 9mm rounds fall out via gravity after slamming a round in with my palm. One example, described as not. BLEM: these will require minor modification to work in your build. S&W using ECM to rifle their barrels! Thread starter RoyB; Start date Sep 20, 2011; R. Since the release of these platforms, ImmortalRevolt and others have worked on modifying the ECM process to allow for cutting and. Hello, i was looking into the documentation of making you own barrel via the ECM process for the FGC-9. Was looking in the proto files, tubee files, and don’t see anything about rifling. Most ignition relays have 4 pins, and if you have one of these, you can follow this guide. So I’ve been looking into making my own barrels for consistency with the Mosins I work on. . The Stainless 1911s are available in four flavors: Savage Stainless, Northern Lights, Black Cherry, and Burnt Bronze. . Additional Parts Required: Fuel lines. In the time since my first ABS and ASA build – I added active heating to one of my 3D printers. Following his early full-auto-only hybrid designs, Professor Parabellum developed several fully DIY semi-auto designs that generally use a printed lower and a metal upper derived from round tubing. It tells you about print order, settings, and orientation. They will be hybrid designs using the strengths of 3D printing and simple metal components to produce practical firearms in the home or in small, unregulated shops. Gunsmithing - Barrel drilling | Sniper's Hide Forum. In tests performed by ARES, an FGC-9 with a craft-produced, ECM-rifled barrel exhibited impressive accuracy: the firearm shot groups of 60 mm at 23 meters, with no signs of tumbling or unstable flight. Achieving 20a/cm² current densities, a specific electrolyte mix held at 40°C, and the other measures specified move beyond what I classify as "easy". Holley’s Sniper EFI system is tough to beat in most situations. If none found, check for power supply at one side of the injector with the key on. There's a photo on my profile of the barrel with the adapter as an example. Simple usage of these short-barreled. add to list. Back in March 2017, I reported on a proof of concept attempt to create rifling grooves using a process known as Electrochemical Machining (ECM). 074. 2 Items: Cost: -SALT 0,10€ -wATER 1€ -BUCKET 10€ -Adjustable Power supply 45€ -Water pump 15€ -PVC HOSE 8€ -HOSE CLAMPS 8€ -Water pump power supply 5€ -BARE copper wire 4€ -ALLIGATOR CLIPs 4€ -PIPE FITTING 2€ . If your i-HDS is not logged in to the iN, you will have to enter the PCM code you have retrieved from the iN Immobilizer Code Inquiry to proceed. First, where the tool is concerned, this means that the (very narrow and. And I infer that the precision of the pilot hole is important because ecm just erodes equally on the. Further, in forensic tests with FCG-9 models seized in Europe, the guns generally exhibited good durability. . The ECM is an Automatic rifle in Zero Sievert. The FGC files come with an ECM guide with a shopping list. Making a barrel yourself appears a non-issue beyond the skill and tooling requirement, as would be a bolt or trigger modification, as long as any work done does not make. Then you are ready to Push or Pull your button through the barrel. . My 2 big problems: 1. Others like CtrlPew helped video documentation, and a team of beta testers put the build through its paces before release. It’s chambered to the specs listed in. . Simple usage of these short-barreled. how to make this bolt without a lathe? 2. . Once you have your setup (which is right around $100 USD) you can knock out barrels super cheap. The 4. The circuit board is used to set up cooling and heating. 0 Barrelmaking OverviewFor the download package/documentation to accompany this video:. The first test barrel was made using commercial available metal tubing purchased off the shelf to ECM rifle what essentially Glock barrels. anti-theft lock may make it difficult to turn the key. Enterprise content management (ECM) is a set of capabilities for capturing, storing, activating, analyzing and automating business content, in order to provide new value from data that was previously unstructured and. 5cm thick support wall all around the mandrel to prevent that. ECM-DIY-Barrels. 49 $629. Tubing pressure calculations tell me that 300 series stainless steel should be able to withstand ~20k psi with a . Learn how to drive on snow,GM Gen III LS PCM/ECM: Electronic Throttle Equipment Guide. 0 Barrelmaking Overview For the download package/documentation to accompany this video:. The Liberator . Cryptor/fosscad • Introducing the DIY Mac11 Upper. Electrochemical machining (ECM) diagram. 0 Barrelmaking Overview. 22lr it uses 16mm hyd tube for the 22lr . The TRUiC barrel making business logo generator requires you to add your business’s name and optionally a tagline, or slogan, to help. Every Day new 3D Models from all over the World. Even where hard materials are machined, the life expectancy of the drilling cathode is greatly extended. Enterprise content management (ECM) is a variant of content management that has evolved over the last 30 years. It's threaded 1/2x28 and is called the resonator. 000 PSI. This video IS NOT a tutorial on ECM-ing your own barrels - that will come later. Bigger and you might have problems. Published on Feb 18, 2021. The most important thing when choosing a camshaft is making sure it matches the type of driving you plan to do. 5mm cr40 tensile strength: ≥810 N/mm2 (roughly 115. 0. Apr 16, 2022 - Deterrence Dispensed presents:Making your own Barrels at Home: ECM v2. ctrlpew 5 months ago 0 1 mins. BCM® 16" SS410 Barrel with Mid Length Gas (stripped) 1/8 Twist. The ignition system is tasked with correctly energizing the spark plug at the needed time during the combustion cycle. Set Savings $189. The yield strength of the barrel material should be at least upwards of 70 000 PSI. 555" OD Blank, it's a flat $20 to turn one end to 0. Since 1993, Smith & Wesson has been using ECM to manufacture most of their revolver barrels. A community dedicated to the discussion of 3D printed guns and related topics. Just use tap water. The yield strength of the barrel material should be at least upwards of 70 000 PSI. 000 PSI. #1. Hammer Forged. . What is the ECM v2. This is the explanation of Electrochemical Machining Process with its advantages, limitations, and applications in a detailed way. FGC-9 MkII by JStark1809, Ivanthetroll, and 3socksandcrocs. The Gatalog presents:ECM V 2. Split the cells 1:10 in 10 mL culture medium (without G418 if conditioned medium is to be used with a cell line sensitive to G418) in 10 cm 2 tissue culture dishes or T-75 flasks and let the cells grow for 4 days (approximately to confluency). The Extrude Hone® Electrochemical Machining (ECM) Process provides a high level of precision on components that are difficult to manufacture by conventional methods. Read More expand_more Read Less expand_less Sort By: Quick view Out of stock. Hammer forging is an equipment intensive but efficient method for making rifled gun barrels. So again basically get the cheapest rod. Beginners guide; Characters; Factions; Map of Zakov. The FGC files come with an ECM guide with a shopping list. First, where the tool is concerned, this means that the (very narrow and elongated) tool cathode generates the desired internal geometry of the barrel with high precision. You can buy (if in stock) 9mm barrel stock that's been turned down just for the FGC-9 from MAF. . The ECM process is used for profiling and contouring, die sinking operation, drilling, trepanning, and micromachining. I've done accuracy and velocity testing on this barrel, and the results were amazing. 1. Electrochemical Rifling. Weapon Modification: Weapons in Zero Sievert can be modified to alter stats and aesthetics to suit the players play style and taste. com. 3, and 4) and tooling to bore and rifle this particular barrel. To answer your question, Nowlin barrels are excellent and I like using them when people request a stainless barrel. Every Day new 3D Models from all over the World. The barrels are hardened and annealed before the rifling process. 1. I know that cheap buttons exist, but I feel like developing ECM technology to deliver superior results is probably a better long-term solution for people in restrictive territories. And you have to make the charging handle. Rotating drive mechanism that turns the cutter holder as it moves through the barrel, forcing the grooves to be cut in a spiral pattern. This will get groove diameter correct. An electrode (cathode) that has metal strips in the shape of the rifling. From cable ties and wire management solutions to custom wire harnesses and cable assemblies, ECM offers a wide range of products to meet your needs. If you have a laythe, machine a concentric cylinder with an inner diameter of . Account functions will be unavailable. To be able to pull of heists in stealth certain skills and equipments are mandatory. How to make a rifled barrel in Europe FGC9 FGC-9 9x19mm 9mm. For ease of troubleshooting and to avoid misdiagnosis, it is strongly recommended that each step of this guide be used in the following order: start Here: Using the ecM service Guide read this section before using Motor diagnostics & replacement before troubleshooting the ecM motor, check these system basics if applicable:The extracellular matrix (ECM) constitutes the main acellular microenvironment of cells in almost all tissues and organs. Threaded barrel for the FGC-9. 9mm. 106 water 16 bucket 10€ adjustable power supply 456 water pump 15€ pvc hose 86 hose clamps 86 water pump power supply 56 bare copper wire 46 alligator clips 46 pipe fitting 26 round steel stock 86 brake cleaner 26 metal file 56 multimeter 56 zip ties. They're cut to fit the FGC-9's 32mm overall length for the shaft collars, but the ID is 0. The Archive Published on Dec 28, 2021. Not to mention how messy and complicated ECM looks to me. 3. BCM. 9x19mm lands are supposed to be 8. You'll need to drill out 2 of the 3 (all 3 if using a full auto uzi barrel) DIN shaft collars to 0. . ECM has been identified as a potential process energy which has the capability to undergo hybridization with other process energies. The bullet you want to shoot will determine your required barrel twist rate. Collecting scrap and all that useless junk actually has a purpose in Fallout 4. I have long suggested practical homemade guns of the future will only use 3D printing as part of the process. This is clearly shown today in what JStark1809 dubs the “FGC9” (Fuck Gun Control 9). In regards to which one is easier, I would probably say ECM. 56 diy barrel. Our testing gave us 3. The exclusive video will be on the Normal AG Cast page and all the “After Hours” pages will be for random content I make when I’m bored and don’t want to get nuked from YouTube. And I infer that the precision of the pilot hole is important because ecm just erodes equally on the whole surface -it doesn't even out the irregularities in a badly. Version: 1. 3d printed mandrel with copper wire wrapped in the grooves to act as an electrode. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. . The King Cobra 9 is a 9mm pistol-caliber carbine built with a minimum of firearms components, utilizing a custom bolt design and a radically new approach to recoil management in homemade firearms: the deleted-blowback system. If so that limits the types of barrels you can make, no locked breech pistol barrels because those have to start out as billet for all the tilting ramps etc that go under the bore. Every Day new 3D Models from all over the World. Open-Source FGC-9 Automatic Fire Control Group, or a Drop-In Auto Sear, or some kind of conversion kit to make the weapon fire automaticallywater, spray brake cleaner down the barrel, then push a cloth patch through the barrel 1-3 times to. [Jeff Rodriguez] has been busy testing a feasible DIY method for rifling a barrel and has found some success using salt water, a power supply, wire, and 3D printed parts to create. Estimated prices are on there. 48mm) mark 15 times, then ½ of the way. 【G-10-076】Spring Guide Ver. 23K views 2 years ago. Could not get a user ID. “Ivan the Troll” developed the easy to replicate ECM rifling process for 9mm barrels, which allows them to be built in small indoor spaces like an apartment or a bathroom. . By "bare" they mean without an insulating coating. . virtual library containing the accumulation of more than 700 years of gun-making knowledge. Should be the same as a pinned and welded AR barrel, make sure it's concentric and you aren't gonna hit the pipe with the bullet and you should be good with your 12" flash can lol. World Famous 1911 ECM-Rifled Barrels #1 in Precision & Accuracy The Choice for Professional Shooters. Forest; Makeshift Camp; Industrial Area; Swamp; Mall; Quests; SYSTEMS.