TLDR; an 80% lower receiver is an unfinished lower that is nominally sold as a “paperweight” or other novelty and not a firearm. Most handheld routers operate at 2,000 to 30,000 RPM. Consumable tooling is fairly well thought out for the AR platform and is pretty universal. One of the most modified parts is the lower receiver and there is a whole sub-market of 80% lower receivers, ready for you to finish. There are many jig options for each platform, which we will cover below. This really does make it a straight forward and simple job. Some examples of consumable tooling are Drills, End Mills, Keyway Cutters, Ball End Mills, Counter Sinks, etc. But that really doesn't mean all that much except to your wallet. 80% Lowers is a premier retailer and YOUR source for 80 percent lowers, 80% lower jigs, build kits and more. Drill Press. At this point, you will remove the drilling template from the top of the … Some jigs, like the 5D Tactical jig have extremely specialized end mills used in their system and require you to use their end mill. It requires less machining because it has been shaped into a receiver blank, and has the advantage of the metal grains following the shape of the part. The 80% AR-15 Lower Receiver started it all, this was the first commercially available receiver on the market and had a determination from the ATF saying it was not a firearm. Most companies compromise the quality of the end mill and drill bits with low … Our 80% build kits include an upper receiver that we manufacture and also include our handguard. Other jigs use very generic tooling, I recommend sticking with what the manufacturer of the jig kit recommends or finding a very similar replacement. Specifically designed for their 80% lowers but compatible with any mil-spec lower, the Optimus Defense AR-15 Lower Drill Jig is capable of completing a lower to mil-spec tolerances. Many of our platforms include the option for an anodized receiver or a raw aluminum receiver. With that said, Stealth Arms produces a set of tooling for manufacturing a 1911 frame without using a mill. I'd like to know if one of the smaller milling machines like the ShopFox or Harbor freight milling machines would be adequate for the job? Custom Laser Engraving 80% Lowers is all the rage nowadays. Once you’ve tried it out and decide it’s something you’d like to continue to do then you can spring for a good quality jig. We lead the way by including a flared magwell, using high quality aluminum products and cnc machined the lower receiver on our milling machine. What is a billet or what are billet lowers? The cost is relatively cheap (you can get lowers around 50USD) and you can easily knock it out in an afternoon. Other manufacturers offer a billet lower receiver that may suit your needs, we only offer billet aluminum options in the TM-22 and AR-10 platforms. Unlike most metal machining operations, cutting and drilling an 80% lower receiver doesn't require much experience or knowledge of tooling. Reasons Our 80% Lower Tool Kits are the best We’ve been building tools right here in the U.S. for over 40 years. This bit is also most commonly provided as the pilot hole bit for the FCC, which is why most jigs and 80% lower kits come with 3/8" end mill bits. My 80% Lower Project About the Video Series Below Introduction and Inventory Setting Up the 80% Lower Jig Configuring the Router for the milling process of the 80% Lower Pilot Hole on the 80% Lower Explained Drilling out the 80% Lower … Now that you have made the wise decision to purchase the new Juggernaut Tactical AR-15 80% Lower Receiver, you will need to finish the machining procedure. Milling aluminum, such as with finishing an 80% lower receiver, is possible with the use of a router end mill cutting tool. A lower parts kit will not even fit in an 80% Lower until it has been machined into a complete firearm. It is the priciest to complete and the priciest to get the tools to complete but the color options are unlimited, and the performance is close to anodizing. Our jig was originally designed to be used with a milling machine and a drill press. The receiver or frame is the part of the firearm that can be controlled by the Gun Control Act of 1968, the same act that ensures your right to manufacture firearms at home. For the best experience on our site, be sure to turn on Javascript in your browser. This eliminates the need for a … I have an 80% lower and need to complete it. We have continuously expanded the option to add laser engraving to our products. As it is not completed it is not considered a firearm and can be shipped directly to your door (No FFL or paperwork). If you want to simplify your purchase, check out our 80% Build kits. Save my name, email, and website in this browser for the next time I comment. 80% Lowers new to you? There are plenty of optional tools that'll make machining even easier: 1. It isn’t easy to hardcoat anodize at home and is best purchased that way or by bringing your completed firearm to a local anodizer. You might be interested in our 80% Lower Guide. We haven’t used it here at Tactical Machining but have had some customers say it is doable and takes a while. 80% Lower: Optional Tools. M1 Machining is the industry standard in high quality AR10 & AR15 lower receivers. It’s a paperweight that looks a whole lot like a functional receiver. AR Lower Receiver Step-by-Step Chapter 2 9 Begin by clamping the forging to your milling machine table using the passenger side clamping pad. Consumable tools are what is used in the machines to complete the lower or receiver. and finish it in your own home. Table of contents What is an 80% Lower and is it legal? Most portable style drill … Place the jig assembly on its side (Side Plate screw heads UP), and use the 3/8″ Drill Bit to drill the … This is absolutely legal and you do not have to register the weapon, at least from a Federal point of view. Our prices can't be beat. This is great news for the home gunsmith as it opens up your options on what you can purchase. Each platform requires different tools to complete. Tactical Machining does offer a router jig kit that allows our standard 80 lower jig to be completed with a router and a drill press. Our AR-10 lowers are both offered as forged lowers and billet lowers depending on what your price range is. We recommend a 5/16” end mill for our jigs. Center line of take-down pin hole Left side face Zero Z axis this face Trigger slot 5/16 end mill (R.156) Fire control pocket 1.250 .010 7/16 end mill (R.219) In the nine videos below I run you through the entire process as I build my first lower. that once you Keep in mind start drilling, milling, or altering your 80% lower it Be warned, if you order an anodized 80 lower it will ruin the anodized finish where the milling is performed, and you may want to coat it with something to prevent corrosion. The 10/22 platform is made from 6061 aluminum made in the USA. Jigs allow you to transform an 80 percent lower receiver, viewed by the ATF as an unregulated hunk of metal, into a fully functional AR15 receiver! With that said, we will cover the tooling you need as well. Every receiver we manufacture meets our precise quality control standards. There are many router jig companies out there that produce jigs that are designed to be used with a router jig and are very expensive. We’re going to cover many of the considerations you should consider when doing these projects. I cover it in the video, but I utilized an Easy Jig Gen 2. In order to actually utilize it you must finish milling it out with a drill press and/or router. This jig can used on both FORGED and BILLET AR-15 80% lower receivers using the new indexing technique which utilizes the buffer tube mount to center the receiver (not the sides). No prior CNC knowledge or experience is required to manufacture from design files. You can get it or learn more about it HERE. AR-15 80% Lower. Essentially this means the only way to complete an 80% lower is to buy your own equipment (jig, drill press, drill bits, or CNC machine, etc.) 80% has brought to market no compromise 80% lowers in both AR15 and AR10 patterns. Mil spec Hard Coat Anodizing is a great option and will match any of the ARs already in your collection and many of the parts purchased from other companies. Tactical Machining is the best source for 80 percent lowers, build kits & accessories. This is because it is a more difficult product and can require more specialized tooling. 56.00. It is highly recommended that you use a milling machine for the 1911 frame project. – A drill press is a pedestal style drill that is mounted to a stand. Mine runs around $300.00. Chapter 2 The First Setup With forgings (as well as castings and weldments) that require final precision machining, the big problem is where to start. Again, it really is a draw, there is no clear winner here. With that said, the billet lower receiver does have the advantage of having all sides machined in the milling machine and in some cases allows you to add features like an extremely flared magwell or an ambidextrous bolt catch. An 80% lower is a receiver blank that is machined as far as you can without legally becoming a frame or receiver and would then require to be transferred to an FFL. Compact routers have been to this point, the popular choice for enthusiasts who wish to finish 80% lower receivers at home in conjunction with a router based lower receiver jig. One of the challenges of the past was finding a way to coat your 80 lower once you were finished milling the 80 lower. We manufacture our own stripped upper receiver from both billet aluminum for our 308 ar lowers and an aluminum receiver blank or forging for our AR-15 line. I personally had wanted to build one for years but was slightly intimidated and just never got around to it. Most you can use any drill you choose that meets the length of cut requirements. If you're milling with an end mill too short, you will not be able to reach the required depth, the same goes for drill bits, they must reach. The TM Recon and TM Government 1911 frames are made from investment castings. Make sure you prep the lower and remove all oils and grease. Many companies offer complete uppers which are ready to bolt on to your lower, or partially complete uppers that are in need of just a bolt carrier and a charging handle. I’m not an expert, nor do I claim to be. Many 1911s are made from Korean castings and then machined in the USA by the Korean company’s USA division. If you are like me you may have known about 80% lowers for a while and just haven’t taken the leap into trying one out. Most often of the AR type, though not exclusively. Not only do we sell world-class 80% lower receivers for you to make a precision rifle, we are home to the world’s first router-based jig to complete milling your lower. I’m relatively handy in the garage, but certainly not a machinist or even close so the idea of milling out a receiver seemed like I would likely be throwing money away on a failed effort. We recommend machining at 25,000 RPM and adjusting as … This tool kit is the industry’s first that is specially designed and manufactured to optimize the machining of personal built lower receivers. By far the most common way is to complete the 80 lower with a jig. You can acquire your own parts or parts kit and then add it to the build kits to create your own rifle. Forgings offer significant cost savings and no real drawback. For those who prefer traditional machining, we also offer drill press jigs. I can now tell you that this is not the case. With that said, our jig is an affordable option but is not the best option for a router. Simple enough, some people don’t coat their 80 lowers and may elect to leave the raw aluminum finish or even polish it. 19. Now that I have knocked one out I plan on doing many more, and I think many of you will really enjoy it too. A billet lower receiver normally is purchased because of it's cosmetic appeal. If you don’t have milling experience, it very well may be a good option. I would consider it middle of the pack for a coating option. 34.00. Essentially you would use your mill and rudimentary fixturing like C Clamps, vises and 3-2-1 blocks to orient your part and mill the features. milling a 80% lower with fairly common tools, first vid of two parts showing the build of a AR15. We were the first manufacturer to offer custom engraved 80 lowers and have since expanded our laser engraving operations. Please read all of the directions from start to finish before starting any work on your lower. The good news is the AR-15 upper receiver and all the other parts are completely uncontrolled as if it was a receiver blank. If you’re buying a finished AR lower, you’re technically buying a firearm in the eyes of the ATF. To get a clean, precise cut on your 80 lower with a handheld router and end mill bit, you'll need to mill your 80 lower using the highest allowable cutting speed. Please note states have their own set of laws regarding these and it is your responsibility to ensure you are not breaking any laws by constructing your firearm. Ghost Gunner is a general purpose CNC mill that gives you the ability to finish a growing library of mil-spec 80 percent lowers to completion. Load the 1/4" end-mill and set the final milling depth as before in Step 15. Better than bare aluminum not quite as good as hard coat or Cerakote. It will not adhere great and will rub off easily like type 2 anodizing but it is cheap and you can always repaint it. 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