It does not throw chips out the top like the 5D, and with the holes and slots taped up and a shop vac attached and running, the chips are fairly well controlled. I violated that specification shamelessly, since I have a good (powerful) cordless drill and do not have a good corded drill, and other than possibly for this use, have no interest in getting a good corded drill. Add an 80% Lower Completion Jig Add Router Jig Tool Kit*: Description Learn More The 80% AM-15 Machined Lower is finished in Type III Hard Coat Anodize, Black in color. The only differences are that it is easier to position the step about 1/16″ below the collet than it is the taper, and there is a centering procedure for the bearing described in the instructions which is pretty important. After a little researching online to see that my buddy was right about Broken Arm's jigs & tools being some of the most robust & by far the most user friendly of any 80% lower finishing product on the market! Neither jig contacts the receiver, so should handle most of the receivers out there, although being closed ended, they may have difficulties with receivers with buffer tube sockets longer than spec. Great write up! The guide is thick enough that it provides lots of support for keeping the drill vertical, encouraging no nicks along the sides of the trigger slot, and along with the 80% Arms length drill, makes it “impossible” to ding up any built in trigger guard. There are two big advantages to the new technology jigs, much less drilling, and a bigger, thus better, end mill bit. If you’re using a hand drill and are not great at keeping it absolutely perpendicular, the thicker the sidewalls, the less chance you have of drilling the holes at an angle (and messing up the side plates). Not only is multi-model capability built in, but the adjustments during assembly can compensate for more variances in receivers, and the bolt-on buffer screw support can be more easily made to handle buffer tube sockets longer than spec than can the solid end bar of the 5D. There are two nylon tubes through the selector holes which hold the side plates securely together; the plates must be pulled apart against the friction of these tubes. If you don’t want to mill the take-down pin pocket, use the medium length guide pins to start. This provides the best fit of the upper, and reduces the chances of damage to the buffer stop pin hole or the take-down pin detent hole from over enthusiastic milling. I got the 5D tactical because at that instant in time it was the only one known, but upon finding out later about the Gen 2, I thought it might address a couple of things I didn’t like about the 5D jig; those quirks were not significant enough though to justify getting yet another jig. Anderson 80% Lower Jig Kit, Gen 2 (0) $77.96 On sale: $70.95 Sale Out of Stock. The buffer tube support is screwed to the end of the top plate with two more cap screws which should also not be completely tightened. Eventually the right speed was found “naturally” by getting used to the sound and feel. Due to the depth of cut and risk of binding, if you don’t have a powerful cordless drill with good battery capacity, use a corded drill as specified. However, since the buffer tube support is bolted on, placing one or more pairs of washers between the support and the top plate should solve any reasonable length problem. If I make an appointment, they let me stand there the entire process. It is easier to correctly position the step; if you were to tighten the router collet on the tapered section, it is likely to work free and cause problems. Your email address will not be published. The Gen 2 has a bushing around the bit which rides on the jig; you are limited to the proper area by a pin which goes through a hole across the jig to block the bushing from going into the take-down lug pocket are, and a sub jig is screwed in place to guide milling the trigger slot. Either company charges $50 for the complete tool set or $40 for the end mill bit alone. The 5D bit tapers from the 1/4″ shaft used by trim routers to 5/16″ for the rest of the shaft to the cutting flutes to reduce flexing and improve cutting. Starting out, the single pilot hole is hard to find with the bit by feel; the quickest way to find it is visually; a small bright flashlight is helpful. Legally built 80% AR-15 firearms. There were none in the cavity except for a few in the pilot hole. Some are air cured and others need heat to cure. One thing to be aware of: the thickness of the sidewalls pushes the overall width which needs to be in the vice to 3 1/8″, which didn’t fit into my 3″ jaw drill press vice; so I used a bench vice. Each AMT jig kit is made from American made steel and is reusable and can finish dozens of AMT AR-10 or AR-15 80% lower receivers. Try not to make too big a cut. Copyright var date = new Date(); document.write(date.getFullYear()); AR Junkies LLC. The UFS 80% lower receiver jig was designed specifically for the UFS 80% lower receiver. 80% Arms Easy Jig Gen 2 step by step AR 15 lower completion will show you how to use the Jig from 80% Arms to complete your lower. Setting up the router is comparable, although the Gen 2 does have a centering step which the 5D does not require. Shipping Status: Backordered 4-6 Weeks The patented Easy Jig® Gen 3 Multiplatform replaces the Gen 2 as the world's easiest to use, fully universal, 80% lower jig capable of finishing AR-15, AR-9, AR-45 and DPMS gen 1 pattern .308 80% lower receivers without the need for any additional adapter pieces. The side plates are connected to the top plate with two cap screws each, which should not be completely tightened in order to allow final fitting. Screw the long bolt though the threaded hole at the bottom of each side plate, to prevent deformation when clamping into the vise. It is wise to check after each pass and manually suck any remaining chips, particularly when using depth gauge two. As a final step, I have a friend who wants an AR in that non-standard color, and has not only never done an 80% before, but is completely unpracticed with anything mechanical, so I’ll have her use the “better” (in my opinion) or at least “easiest” jig to see how “idiot proof” it is. As a result of paying close attention, no equipment dared to act up and the result was an excellent cavity, with a nice finish. The AR-15 only Gen 2 is price competitive to the steel AR-15 only 5D, but there is no way to ever upgrade the 80% Arms version to AR-308. Your email address will not be published. Drilling the pilot holes was about the same as every other jig; just a lot fewer were required. I’d say the 80% Arms is noticeably better for most people, “better” being defined as “easier to use and harder to screw things up” because both can do an equally good job, which is better than was practical with older technology jigs. And it looks to be more difficult to modify than the 5D jig. As for a finish, most now come in pop tops for the home smith. As for the router setup, it is essentially the same as the 5D. Please complete the fields below to send your friend a link to this product. The jig panel is held to the side plates by six Allen head cap screws. The guide for these two holes is “flush” to the jig plate, which is necessary to set the drill depth, but does not provide “enough” guide stability for the trigger pilot hole, and has no way for chips to get out except the top of the hole, which makes it a bit more difficult than jigs which have an escape hole or channel at the bottom. After several passes, I noted that the two screws holding the buffer tube disk in place had backed out some. Manufactured from high-grade polymer, this Gen 2 80% lower receiver from James Madison Tactical is easy to customize and install. The one point guide system has no risk of changing geometry like the two point system does, but it is still a good idea to go around the outside once you think you are done milling a pass. You don’t have a Bridgeport Mill ! If you have a mill, then I’m not sure that upgrading your jig is necessary. There may be better choices, but as long as it is used with both jigs, should not affect the comparison. I use a Central Machinery mill/drill, (Harbor Freight), since I had it already, and the 2-axis table makes the entire process a breeze. In order to maximize the effectiveness of the Shop-Vac chip removal, use tape to close off the top half (above the jig) of the Shop-Vac port as well as all the holes in and around and between the side plates. I am quite competent mechanically and have done a few 80% AR receivers using a drill press jig, an Easy Jig Gen 1 and the 5D tactical jig so far, so can be considered quite familiar with the process. The 80% lower receivers allow you as a DIY enthusiast, or hobby gunsmith to complete an entire AR-15 build on your own. 80% lower AR-15 Easy Jig gen2 router jig review Manufacturer's sale page for the Easy Jig gen 2 for AR15 and AR10 Recently 80% Arms released a completely redesigned version of their original Easy Jig router-based system. That small circular movement methodology these advanced jigs require makes it easy to miss getting into the corner. The quality of the results was neck and neck with the 5D jig, but I found the Gen 2 easier to use and with fewer ways to screw things up. The instructions are very specific that you NOT use a cordless drill. Machined to perfectly fit all AR-15 parts, the The test will be a billet receiver completed in the 5D jig immediately followed by one in the 80% Arms jig. If needed we would make our own fixtures. AM-10 Kit, Gas Block AM-10 Kit, Handguard AM-10 Kit, Lower Parts AM-10 Kit, Receiver&Handguard AM-10 Kit, Upper Receiver AM-10 Kit, Skeletonized AM-10 Kit AM15 KITS AM-15 Kit AM-15 Kit, 80% AM-15 Kit, Barrel Nut Ready to hit the ground running? The marks were a bit easier to read than the 5D, but the last few in the gauge did need more light to see. The receiver should have no movement when correctly mounted in the jig. The Gen 2 has an adapter available for an additional $30 which allows use of a full size router. Install the first set of guide pins into the jig base on the router. Although the suggested depth increments worked well during depth gauge one, I found that using 1/2 mark increments was better during depth gauge two. It will be interesting to see what 80% Arms is working on. Note that if your buffer tube socket is longer than mil-spec, it won’t fit into the 5D jig unless you modify the jig plate. Adjust the depth so that the collet is ABOVE the end of the router (so it is “inside”). Easy to finish lower! It looks like (at this instant in time) these two choices are the “best” choices in jigs. By the time I reached the end of this depth gauge, the hole was deep enough to contain a majority of the chips, and the vacuum no longer had much effect anyway. What I will say and hold as gospel is to take your time setting up to do the work. High-end rifle kits, AR-15 80 lower receivers. Thank you sir! Without tool experience, it would be much better to have someone experienced present to explain things and nip potential mistakes in the bud. As far as I know, these two are the state of the art in jigs at this instant in time (October 2017). This is exactly what our 80% lower jig for 80 percent lower kits and custom tools help you do. The UFS 80% Lower Receiver Jig Kit is made up of 3 aluminum plates (sides & top drill plate) & 2 steel top mill plates. I don’t use this, preferring to fit the upper to the lower manually using AC Delco Gear Marking compound on the take-down lug. Figuring the right speed to move the router at was difficult for her. This jig will also fit all other 80% lowers on the market. I’ve been comparing the two trying to figure out which way to go. The completed receiver accepted the LPK and functioned flawlessly, and the upper fit nicely. We’re looking forward to testing this bad boy out in the future too! I’ve been using the 80%, Gen 1 for a while now without problems, although I think I may just upgrade to the Gen2, just because. The 80percentarms receiver just barely fits in the jig lengthwise, and in fact, some of the cerakote was scuffed and a bit even scraped off the end of my buffer tube socket due to contact with the buffer screw support. The orientation is critical, so the hole spacing is made slightly different side-to-side, preventing you from fastening it in place wrong. Since the receiver was quite hard to find in the specific color desired and extra expensive because of that, I wanted to minimize the chances of messing it up … or causing the owner annoyance. I suggest checking the bit and depth stop tightness right before starting and when you go from depth gauge one to depth gauge two. We offer a everything you need to get started in our MinuteMan kit , available with three (3) lower receivers. 5D offers free shipping on orders over $200 and so does 80% Arms. The final assembly step is to thread a long Allen head cap screw from one side plate through the other. Although better than 5/16″ for starting the router bit each pass, it is a bit tighter than 3/8″. I suggest it is always a good idea to use a digital depth gauge to check the depth of each of the last few passes before completing the pass. So which one is better? Plates screw together so that you can get accurate and The 80% Arms drill guide is 1 1/2″ thick, which should make it harder to screw up with a hand drill. Required fields are marked *, Copyright 2020, The Prepper Journal - All Rights Reserved. I could not find video instructions on the site, but one was done by an 80% Arms dealer at www.80-lower.com and you may be able to find others. Each jig kit includes side plates, nesting plate (used for locating and holding drill plate and end mill plates), 1 – 3/8 drill plate, 1 – 3/8 end mill plate, 1 – 3/8 end mill plate, 1 – 5/16 end mill plate, 4 – set screws, 2 – allen wrenches. All in all it was a significant step forward in 80% jig technology, and a similarly advanced Generation 2 of the Easy Jig became available not long afterwards. The powder coat will add 6 to 10 thousandth to each surface, so if you coat the inside diameter of a 0.25″ hole, you drop the size down to 0.238 or smaller. This jig works with New Frontiers C-4, C-9, C-45, C-5, and G-15 80% Lowers and all other 80% lowers on the market! These accessories cost $20 each or a set of two is $30. Carefully slide the jig router base bearing over the end mill bit, and fasten the jig router base to the router following the instructions for your router. In the 5D, the drill guide is about 3/4″ thick, so using a hand drill can still end up in the hole being at an angle and there have been reports of this happening. I would also save these tubes for future storage of the jig. So far it looks like it has great reviews (and tons of fans in the comments) but is priced a little higher at $289. If it is likely you will be doing both models, the Gen 2 universal model is the price leader. This did not cure the problem, but it did reduce the scope adequately during the passes for depth gauge one. And our cutting fluid will be Tap Magic Aluminum, because that is what I have from some people’s recommendations when I started out, and it seems to work well. And this is not just a polymer build, but it incorporates other high-quality materials into its design. Drilling the single pilot hole was a joy, at least relatively speaking. Double checking the jig depth gauge, it is correct, so either the bit slipped, the router depth slipped, or I left a gap between the router base and the edge of the jig when setting the final depth. (Only one template bolts to the top at a time.) 4 JMT Gen 2 Polymer 80% AR15 Lower Receiver & JIG Next, in our reviews of the best 80% lower receivers, we have the James Madison Tactical Gen 2 80% AR-15 Polymer Lower Receiver and Jig. We will contact you as soon as this product is available. Keep an eye on these; if they are, or work loose from the vibrations, the receiver can move in the jig, which has negative implications for the accuracy of the results. Decided on the Easy Jig because I screw up enough on my own, I need all the help I can get. This system offered much less drilling, more convenient depth setting gauges, more accurate positioning of the jig with respect to the receiver, a larger diameter, better supported end mill bit, less swapping of jig parts during the milling process and a “touch free” (the end mill bit never touches the jig) guide system. I have not seen any reports of people’s trigger hole being messed up with this jig. This could work very well, but you will have to stop milling twice to change the lengths of the pins, which confines your milling to the appropriate areas. Pull the bit back out about a 1/16 of an inch, and tighten the collet VERY TIGHT. Assembling the 5D jig is a bit more involved than some older jigs, but not excessively so. Not Router Compatible. If you have a mill, then you don’t need to drill all the holes the Gen 1 jig requires, and you can use a full size 5/16″ end mill bit, which should be even better than the necked down ones. The Gen 2 avoids these quirks without introducing any significant ones of its own except for the Shop-Vac port being male, and is a bit more “idiot resistant”. I can’t say for sure, but mounting the 80percentarms receiver to be used in this comparison, it appeared this receiver also might not have fit if the modification had not been done, although it looked to be real close. My name is Dan, I'm making videos because it has been suggested I do so by many people. AR-15 80% Lower Receiver Jig ($ 69.99) reviewed by Allyson Brown Overall just very low quality, wish I could get a refund and buy the "Anderson Gen 2 80% Lower Receiver Jig Kit" instead because I know it's better all around and cheaper! 80% Arms Easy Jig Gen 2 Tool Kit This item is currently on order MSRP: $49.99 New Frontier Armory 80% AR-15 Lower Completion Jig Usually Ships in 24 Hours MSRP: $56.99 Sale Price: $54.95 JoeBob dun saved you $2.04! End Mill Bit – Both require using their own (or possibly each other’s) end mill, because neither uses the shank of the bit as a guide like the older technology jigs. This would be handy if that is the router you already have (and you have a 1/4″ collet for it), but I’m wondering if it would be more difficult to use precisely. I found this intolerable, and even though it would not be a “true” comparison, I installed and used the Dewalt accessory vacuum port to keep the chips somewhat under control. I repeat this sequence until the upper fits, then wipe off the remaining goo. Yeah I know…. It also comes with 4 allen head bolts and an alignment pin to ensure perfect fit every time. Only two holes are needed, one 3/8″ hole to depth (which requires accurate placement of a drill stop using the built-in depth guides) and one 5/16″ trigger slot pilot hole (which needs to be prevented from drilling into the built-in trigger guard, if present). There are many jigs to aid you in completing an 80% AR-15 (or AR-10/AR-308) receiver, with router based systems generally being preferable. FFL violation and all that. The previous time I used this jig, I was standing at the buffer tube end and did not have this problem, so I suggest NOT standing to the side during milling. The router has to be prepared as well. Also, since the guide system uses two points, if you allow the router base to rotate, the end mill won’t be able to reach all the way to one side. But it annoys me when people say one or the other is better unless they have actually used both of them. There is a hole on each side of the guide which aids in chip removal without sacrificing any guidance of the drill. In addition to my review here, you can see more on it atÂ the company’s website here. Menu Finish an 80% Lower Jigs and Tools Router Jig Showdown! Drilling the selector and pin holes with a hand drill was a bit more stable than with the 5D jig, although there are more holes in the side plate, which can be a bit confusing. And if you drop one of the small parts, you have to look for it, and if you can’t find it, you are at a standstill until you get it replaced. Use the Comparison Results to help you decide. If you are still nervous, 80% Arms has a hardened steel “stabilizer” which mounts to the side plate and doubles the amount of the drill bit supported to an equivalent of 1 1/2″ thickness. My drill worked fine for me. The drill guide is held to the side plates by four Phillips flat head screws. The 5D walls are supposed to be 1/2″ thick and the 80% Arms walls are supposed to be 3/4″ thick. Get “fancy” ones which are all the same thickness to avoid having this part at an angle to the receiver. The Easy Jig Gen 2 Multi-Platform upended the industry and can be used for years to build a personal collection of homemade firearms. The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. Unique Features – The Gen 2 has a port to which you can connect a Shop-Vac to help suck out the chips. I wouldn’t toss them; but would keep them for packing away the jig later. Pull the two pins and the receiver drops out. For the coating/color I cheat: I get unfinished Al billets, finish them up, and take them to a local automotive powder coating place to provide the finish coat. 80% Lower Receivers, AR15 80 percent lower Jig, AR 15 complete uppers, Rifle and Pistol Kits. Once you get it centered in the hole, it cuts very smoothly. The receiver is held in the jig by a pin through the pivot pin lug, a pin through the take-down pin lug, and two flat head screws through the jig end into that disk screwed into the buffer tube socket. The 5D milling process is not as continuous as the Gen 2 due to having to change guide pins part way through the process. When drilling on the other side, I added the accessory stabilizer, which went on easily and did give me more support. The first pass was a surprise, both good and a bit annoying. The Gen 2 requires only one hole to be drilled, an 11/32″ hole all the way through both to start the router in and as a trigger slot pilot. I’m knocking on the door of 70 years old and in the day technology like this was only with the big guys. The resulting pilot hole was dead centered in the trigger slot. My 5/16″ drill (not from 5D) was long enough that even fully chucked it could ding the built-in trigger guard, so I used the 3/8″ drill stop on the 5/16″ bit as a safety. Finally, it is easier to have the cavity too narrow with the two point guide system than it is with the one point guide system. If the take-down pin pocket is not already milled at all or you don’t want to “hand fit” the upper, do use the shortest guide pins. The armory’s were also licensed to manufacture, so a bit above the home smith. Construction – Both jigs being compared have the steel side plates to better resist the guide holes being enlarged during drilling and to be as equivalent to each other as possible. ! In fact, before you can assemble it, you have to “disassemble” it because it comes with the big parts bolted together with two bolts which you are instructed to discard. The 80% Arms Gen 2 jigs are being ordered faster than they can make them and the site says to expect three weeks between order and shipping. … The Gen 2 did just as good job milling, but it was less messy and provided fewer ways to screw up. Like the Easy Jig 2, it can do AR-15, AR-9, and AR-10 80% lower receivers. As always, if you have information for Preppers that you would like to share and possibly receive a $25 cash award as well as be entered into the Prepper Writing Contest with a chance to win one of three Amazon Gift Cards with the top prize being a $300 card to purchase your own prepping supplies, enter today! Follow the instructions to figure out which direction to mount them for the model you will be making, and make sure the directional label on each side plate matches the directional label on the top plate. I did all the setup, but for legal reasons, the machining was done by the actual owner under my supervision, so it was not quite a true newbie experience. Follow the instructions to get it into the correct orientation for your model, and put the cap screws in the RECESSED holes, not the flush ones. Drilling Required – The 5D jig requires two holes to be drilled, a 3/8″ hole to depth to start the router in, and a 5/16″ hole all the way through as a pilot for the trigger slot, although using a 5/16″ hole for a 5/16″ end mill bit might be a bit tight. The Gen 2 can do both. Guide Methodology – The 5D jig has two guide pins which go into guide depressions on each side of the receiver. All the assembly (and disassembly) uses the supplied (3/16″) Allen wrench. The instructions are very detailed and included in printed form in the package; the latest version is also available in PDF form on the web site. As learned with the 5D jig, I checked the tightness of the bit and the depth stop when moving from gauge one to the second gauge, and I started each of the last passes and immediately checked the depth before continuing. The instructions are good, but appear to only be available on the site as both text (PDF, so you could print them out) and video. Editors Note: Another guest post from John Hertig, number 24 I believe, to The Prepper Journal. You will need a Phillips screwdriver and/or whatever tool is used to remove the stock router base. The port requires a 1 1/4″ hose, but is male, and most hoses have a male end as well. The kit comes with 3 aluminum jig plates, 1 steel top router plate, and all screws Jig includes proper diameter bits to drill all necessary holes. Drilling the selector and pin holes was slightly easier using the Gen 2 jig, and even easier using the stabilizer block. The last step is to install the pilot hole guide, which can only go in one way with an unmilled receiver installed, and is held in place with the last cap screw. The completed receiver accepted the LPK and functioned flawlessly. This receiver is fairly priced as a polymer lower. This disc needs to be installed before inserting the receiver into the jig. To get started on building your AR-15 or AR-308/AR-10, order the jig, tools, and receivers you need straight from our store, or call us today at 508.834.4223. Make sure you put the pins in before tightening the screws into the disk, or the receiver may be pulled too far to the rear for the pins to go in. I force the lug into the pocket as far as it will go; when I remove it, some of the yellow goo has transferred to the places in the pocket which are tight. And as you get deeper in the cavity, it seems to be easier to find the pilot hole, getting harder again as you near the bottom. Since both side plates are threaded, this keeps the jig from distorting when clamped in the vise. Since the receiver was quite hard to find in the specific color desired and extra expensive because of that, I wanted to minimize the chances of messing it up … or causing the owner annoyance. Unless you are really good at keeping a hand drill perpendicular, it is better to use a drill press for this hole.