Our 80% build kits include an upper receiver that we manufacture and also include our handguard. 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. Currently all 80% AR 15 receiver options from Tactical Machining are CNC machined from 7075-T651 Aluminum Cerro forgings. 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. Seems a bit crude. For the best experience on our site, be sure to turn on Javascript in your browser. It will not adhere great and will rub off easily like type 2 anodizing but it is cheap and you can always repaint 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. We recommend a 5/16” end mill for our jigs. There are many jig options for each platform, which we will cover below. By far the most common way is to complete the 80 lower with a jig. I can now tell you that this is not the case. I would consider it middle of the pack for a coating option. The market has been trending towards purchasing 80 lowers that have already been anodized black. Drill trigger, hammer, and selector holes first, then mill the fire control pocket and trigger slot. End mills appropriate to your jig kit for milling the fire control group. 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. and finish it in your own home. A billet lower receiver normally is purchased because of it's cosmetic appeal. We haven’t used it here at Tactical Machining but have had some customers say it is doable and takes a while. We are The Masters of the Black Arts of Tooling ™. It is worth mentioning again this is my first time doing this. 5/32 Drill bit or Similar for the hammer and trigger hole, 1/4 Drill bit or similar for removing the material from the trigger pocket before milling, 3/8 Drill bit or similar for the safety selector. Consumable tools are what is used in the machines to complete the lower or receiver. It is an extremely durable coating and has extreme hardness and great wear resistance. A lower parts kit will not even fit in an 80% Lower until it has been machined into a complete firearm. 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. PF-Series™ 80% Pistol Frames We’re going to cover many of the considerations you should consider when doing these projects. Save my name, email, and website in this browser for the next time I comment. Enjoy FAST SHIPPING and SAVE at 80-lower.com today! Unlike some of our competitors, our investment castings are made in the USA and then CNC Machined in-house in the USA. A lower parts kit will not even fit in an 80% Lower until it has been machined into a complete firearm. With the right required tools picked out, your project should run smoothly. Again, it really is a draw, there is no clear winner here. Most companies compromise the quality of the end mill and drill bits with low … After our parts have been cnc machined they are then taken to laser engraving if necessary and finally sent off to be coated. This really does make it a straight forward and simple job. 80% Lower Jig | Finish Your 80% Lower at Home | 5D Tactical There are plenty of optional tools that'll make machining even easier: 1. Let alone the prize of building out your custom firearm in the end. 80% Arms and other 80% lowers using only a drill press and a few common tools. We recommend machining at 25,000 RPM and adjusting as … You don't want to stop your 80% lower project half-way through cutting the fire control cavity, because your end mill bit broke. Table of contents What is an 80% Lower and is it legal? Move the cutter around the pocket in a clockwise direction (conventional milling direction). But that really doesn't mean all that much except to your wallet. 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. Then indicate the forging true to the x axis. Unlike most metal machining operations, cutting and drilling an 80% lower receiver doesn't require much experience or knowledge of tooling. It fits nearly all billet and forged AR-15 lower receivers with only a few exceptions. 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. Other jigs use very generic tooling, I recommend sticking with what the manufacturer of the jig kit recommends or finding a very similar replacement. This is just the core components, an upper, lower and handguard. 17.99. AR-15 80% Lower. TLDR; an 80% lower receiver is an unfinished lower that is nominally sold as a “paperweight” or other novelty and not a firearm. 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). You might be interested in our 80% Lower Guide. 56.00. Some examples of consumable tooling are Drills, End Mills, Keyway Cutters, Ball End Mills, Counter Sinks, etc. 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. This is great news for the home gunsmith as it opens up your options on what you can purchase. There are several real coating options both commercially available and available for the home gunsmith. If you don’t have milling experience, it very well may be a good option. It also typically isn’t as affordable as the AR lower tooling. The R&B Tactical Tooling 80% Lower Receiver Cutting Tool Kit was created, designed and manufactured by us. 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. With that said, Stealth Arms produces a set of tooling for manufacturing a 1911 frame without using a mill. Spray paint from your local hardware store works pretty well believe it or not. Some of you may not have heard of an 80% lower and if so, no biggie we’ll explain it real quick. I’m not an expert, nor do I claim to be. The jig includes plates for the different steps of machining out the lower, as well as a … A billet is a term for a solid block of metal with no features at all, almost as raw as metal can get. 1/4" 3 Flute, 3/4" LOC, 4" OAL "ZrN" Coated Carbide End Mill, For 80% AR15/AR10/.308 Lower Receiver Jigs, Compatible with Easy Jig, Modulus Arms $ 29.99 Compatible High Performance 5D Tactical Pro Jig "ZrN" End Mill and "TiN"Drill Bit Combo Mill The Fire Control Pocket. 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. 80% Lowers is a premier retailer and YOUR source for 80 percent lowers, 80% lower jigs, build kits and more. 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) JavaScript seems to be disabled in your browser. Best Prices on 80% lowers and fast shipping! With that said, our jig is an affordable option but is not the best option for a router. The good news is the AR-15 upper receiver and all the other parts are completely uncontrolled as if it was a receiver blank. Tactical Machining is the best source for 80 percent lowers, build kits & accessories. Even complete uppers are not controlled. 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. Our jig normally retails for about half of some of our competitors jigs. I cover it in the video, but I utilized an Easy Jig Gen 2. If you’re buying a finished AR lower, you’re technically buying a firearm in the eyes of the ATF. Cosmetics aside, there isn't a huge difference between billet aluminum and forged aluminum other than price and freedom of design. Custom Laser Engraving 80% Lowers is all the rage nowadays. 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. Drill Press. It isn’t 100% complete. If I were to pick a coating for the home gunsmith this would be the first choice. At this point, you will remove the drilling template from the top of the … You can get it or learn more about it HERE. 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.) Our jig was originally designed to be used with a milling machine and a drill press. 5/16" AlumaCut 3 Flute Extended Carbide End Mill 1/4" Shank for 80% Lower 5D I4. For the best experience on our site, be sure to turn on Javascript in your browser. 34.00. 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. We were the first manufacturer to offer custom engraved 80 lowers and have since expanded our laser engraving operations. It is highly recommended that you use a milling machine for the 1911 frame project. Notice the solid area where the trigger would go, making it a paperweight, not a firearm. There are plenty of resources out there to help you check your local laws and we are not lawyers here so you’re on your own with that. Milling aluminum, such as with finishing an 80% lower receiver, is possible with the use of a router end mill cutting tool. 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 … With that said, we will cover the tooling you need as well. An 80% Lower is essentially a partially milled lower receiver for a firearm. 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