The pins on the plate should rest inside the rear take-down of the AR lower and from the pivot pinholes. Of course IT IS from a Federal Law standpoint as well as our 2A but the local governments can also be a serious road block to happiness. You’ll use the end mill bit similar to a drill bit, plunging downward until you reach the 1.375” depth mark. WarrHogg 308 AR 80% Lower Receiver Instructions Author: Loran Kelley, Polymer80 Co-Founder Warrhogg 308 AR ... milling process. It is the end user's responsibility to determine if finishing an 80% receiver is permitted by law in their state and/or municipality. It’s a question that all newcomers ask when they attempt their first rifle build. Arms and other 80% lowers using only a drill press and a few common tools. We stand behind all our products and we’re here to support you. With the tools you need on-hand, it’s time to tackle your first 80% lower build. If you wish, you may coat the interior of the receiver to better protect the now-raw aluminum showing through. Don't overthink it, we've made it very easy. These Are The Tools You Need To Build An AR-10 Rifle You can almost imagine... Benefits of an AR-10/.308 The AR-10 has been with us for over six decades now,... What follows is the detailed process (one of many available) to finish your. When using the Modulus jig, you must install a pivot pin in the 80-percent lower. Using the left jig plate, secure the opposite side and stand the lower up vertically. Then slowly trace around the outside perimeter of the smaller slot in the Milling Top Plate MAKING SURE that you have some “shank” (non-cutting surface) of the End Mill ALWAYS running against the slot walls. Since (4) of the 1/8 diameter holes fall on the edge of this 0.250 hole, I drilled the (4) 1/8 holes at … Add to wishlist. You’ll want to drill precisely 2.000” deep from the top. When you press the End Mill down (plunge) into the 80% Lower material, GO SLOW. Drill entirely through the sides of the receiver via the right side plate. (Only one template bolts to the top at a time.) This new plate includes a smaller interior guide and says “3/8” EM 2.00 Deep From This Face.”. TOOLING. Stealth Arms' AR-15 Jig is designed to aid in finishing your AR-15 and 1911 80 Percent Lower Receiver. With the pilot holes drilled, the aluminum left in the fire control cavity may then be removed using the same method. Make sure to periodically pull the drill out of the guide hole to clear any chips. You’re done! No Problem. Note: your jig will probably not look identical to this, but the concept will work the same. You’ll require this bit for the safety lever pinhole. By now you've caught on to the fact that using an 80% lower receiver to build your new AR-15 or other rifle or pistol is probably the best approach: You're skipping the background check and NICS fees, the transfer fees and special taxes, and you're avoiding the branded premium prices. More recent than the concept of 80% lower receivers themselves, is the concept of being able to finish machine the lower receiver using only a handheld drill and compact router. While optional, it’s recommended you keep the following nearby: Furthermore, you’ll need a few end mill bits and drill bits but, depending on the jig you purchase, they are occasionally included in the packaging. But how do you actually complete your 80% lower? Progress Check – when you remove the Drilling Top Plate, your 80% Lower should look like the image above. Replace the plate with the included milling template, marked “3/8 EM 1.375 Deep From This Face.”. But how do you build an 80% lower? Overview: These instructions are meant to give you some direction in completing your Optimus Defense 80% Lower Receiver. Apply light pressure with the clamp to ensure the jig does not move during the process. Or use the Drill Jig to drill each 1/8″ Hole to a little higher than finished depth for the FCG main pocket at 1.250″. Begin drilling while making sure that the drill bit is kept straight and perpendicular to the receiver. STEP 1 – First align either Side Plate to your 80% Lower and insert (2) 1-3/4″ long allen head screws through to fasten all three pieces together – DO NOT tighten yet. LEGAL – We’re pretty sure that everybody knows this already but we have to make the statement that if you choose to finish your 80% Lower into a functioning Rifle part, but FIRST check with your state and local laws to make sure that it is legal to do so. Throughout this process, apply copious amounts of machining oil to the end mill bit and the template plate. Zombie Green Cerakote AR-15 Upper and 80% Lower Receiver Set STEP 6 – Continuing with the jig assembly standing upright, start drilling with the 1/8″ Drill Bit at every hole shown above as Orange. Do these instructions look confusing, or you just aren't sure what they mean? Using a milling machine is preferred, but a hand grinder or Dremel tool will also work. In doing so, you’ll avoid excess chatter. You may remove both the jig and the lower from your vise and position the entire assembly horizontally for further drilling. Use the Drill Press to drill each 3/8″ Hole to a little above finished depth for the FCG main pocket at 1.250″. Place the jig assembly on flat surface (Drill Press Table) standing upright and make sure everything is square and true. Once the trigger slot is cut, the receiver’s fire control cavity is finished. Complete 80% Jig Kit is all you need to complete the final machining process to turn your 80% AR-15 Receiver into a working stripped lower receiver. Lubricate the template plate guides and receiver using your machining oil to protect your drill bits. 80 LOWER MACHINING MANUALS JMT AR-15 Polymer 80 Machining Instructions. – We’re pretty sure that everybody knows this already but we have to make the statement that if you choose to finish your 80% Lower into a functioning Rifle part, but FIRST check with your state and local laws to make sure that it is legal to do so. Proudly Made in the United States of America, ​How to Build An 80% Lower: Beginners Guide. Instructions to complete using a milling machine. -UFS 80% Lower Receiver Jig Instructions- Please begin by reading this document in its entirety and making sure you have all necessary components and tools. The final step, now with the receiver and jig horizontally placed, is to drill the hammer, trigger, and safety pinholes. SHOP JMT; JMT PRODUCTS. Set your down steps to about 1/8″ and when you press the End Mill down (plunge) into the 80% Lower material, GO SLOW. You can either “start” each hole, and then to drill to depth after removing the Top Plate. 308 PARTS. Always remember to wear proper PPE that once you Keep in mind start drilling, milling, or altering your 80% lower it becomes a … Not because of any ridiculous milling requirements but primarily because all of the rest of the fitment after you've completed the frame. Your 80% lower is now ready for assembly. 80% Lower Receivers for AR-15 & AR 308. To use the Modulus Arms jig, you must first install a pivot pin in the 80-percent lower. Using the 5/32” drill bit, finish the hammer pin hole, trigger, and disconnector pinhole. Legally built 80% AR-15 firearms. Also, don't forget, we offer the Foolproof Guarantee! The 1911 is an old school hand fit firearm and it shows when you're doing an 80 1911 frame. Skeletonized AR-10 .308 80% Lower with Jig Kit, Skeletonized DPMS LR 308 80 Percent Lower with Jig Kit, Skeletonized Billet AR-15 80% Lower with Jig Kit, Raw SR25 AR-10 .308 80% Lower with Jig Kit, Cerakote LR-308 DPMS .308 80% Lower Receiver, AR-15 Rifle Kit 5.56 M4 16" / Chrome-Lined, Skeletonized Raw DPMS LR-308 80% Lower Receiver, Cerakote SR25 AR-10A .308 80% Lower Receiver, Blemished AR-15 80 Percent Lower Receiver, Black Anodized DPMS LR-308 80% Lower Receiver. But since the founding of the Constitution, we’ve witnessed countless caveats come into play, along with immense difficulty in purchasing or selling firearms throughout the country. ANDERSON MANUFACTURING 80% LOWER RECEIVER JIG -SUGGESTED METHOD- Step #2: Install Template 1 as shown in the picture on the previous page using provided screws. According to the Second Amendment, all U.S. citizens hold the right to bear arms. You may remove both the jig and the lower from your vise and position the entire assembly horizontally for further drilling. Completion – when you are done remove the Slotting Top Plate and your 80% Lower should look like the image above which is a 100% complete and ready to use Lower Receiver. STEP 1 – First align either Side Plate to your 80% Lower and insert (2) 1-3/4″ long allen head screws through to fasten all three pieces together – DO NOT tighten yet. For step three, you’ll now install the pilot hole drilling template using the two included countersunk hex-head bolts in the jig package. Shipping and Returns, All Shipping Currently At 4-6 Weeks. On Kevin's 80% lowers he adds a 0.250 diameter locating hole to help him during his production runs. Remember: Do not remove the template holder from the top of the jig. We mentioned you might want machining oil nearby for lubrication. Take your time, follow the instructions, and you're guaranteed a great result. The drill bushings ensure every pin hole is aligned. Find the highest quality 80 percent lower receivers, receiver jigs & receiver build kits for your AR-15 at the most competitive prices right here at RightToBear.com. STEP 10 – Attach the Drilling Top Plate (as shown above) squaring and leveling once again to continue with the jig assembly standing upright. Check out the easy instructions on how to finish an 80% lower receiver. When milling around plate, shaft of end mill is able to hit side, ... AR-10 Gen 1 DPMS Anodized Billet 80% Lower Receiver. Now, drill down 2.000” deep into the receiver from the face of the top template plate. • Drill two 5/16” thru holes (one on … AR15 PARTS. We provide all the jigs and tools necessary to complete 80 percent lowers! Additionally, after the milling is completed, the build process seems to be where most people get into trouble, particularly during assembly and cleaning. Quick View; AR-15 80% Lowers, AR-15 Uppers. Besides the following list of Drills and Mills which is available as our standard Tool Kit, you would be best served to use a free-standing Drill Press to complete your Lower. Everything You Need To Build An 80% Lower Receiver . Sitemap Our live inventory system means if you can add it to your cart, it's yours! AR-15 Jig Kit Milling Directions | … For greater accuracy, we recommend installing the drill stop collar along the shaft of the bit and use the digital calipers to verify the depth at 1.375” precisely from the template plate. Aluminum lowers are very hard and require more tools and supplies to properly complete. Set the depth to stop precisely 2.000” deep from the face of the template using a stop collar and calipers. Then slowly trace around the outside perimeter of the smaller slot in the Milling Top Plate MAKING SURE that you have some “shank” (non-cutting surface)of the End Mill ALWAYS running against the slot walls – Remove the Milling Top Plate. ATF Firearm Laws and Information. The jig package included a 3/8” drill bit, which you’ll now want to install on your drill press or milling machine. To complete the lower you will be drilling three holes and machining two pockets. You’ll cut through the floor of the 80% lower to create a slot for the trigger once done. The three side holes for the pins, on each side of the receiver. Instructions to complete using a drill press. SHOP 80% LOWER RECIEVERS. Once you have your 80% lower receiver and jig, there are some extra items you will need to round-up to make sure you have a successful build. If you happen to mess up one of our lowers with one of our jigs, we'll replace it at a 50% discount. This document is intended to give a basic direction or guidance when completing or finishing a UFS 80% Lower Receiver. Handgun, Breaking News: 80% Lowers Under Intense Fire, Company Statement: ATF Raid on Competitor Polymer80. Once the trigger slot is cut, the receiver’s fire control cavity is finished. Once the pilot holes are drilled, remove the 3/8” bit and pilot hole plate. Tighten all fasteners starting with Side Plate screws. You’re able to purchase an unfinished lower and complete the build yourself, thereby saving you time and money while avoiding legal hassle. 0 Using the 3/8” drill bit, complete the safety lever pinhole. Proudly Made in the United States of AmericaProudly Made in the United States of America, Monday-Thursday 12pm to 4pm PST Closed Friday, Saturday, & Sunday. One of the most modified parts is the lower receiver and there is a whole sub-market of 80% lower … Specifically, which routers are best for finishing an 80% AR-15 or AR-308 lower receiver with our Universal Router Jigs. Each instruction spelled out below corresponds to the image just above it. To do this, you need a pivot pin, a pivot pin detent and a pivot pin detent spring. In this post, we’re going to talk about routers. It is only intended to be used as an actual Drilling Jig just ONCE. Progress Check – when you are done drilling the correct number of 3/8″ holes, your 80% Lower should look like the image above. STEP 7 – Continuing with the jig assembly standing upright and the Drilling Top Plate removed. Or use the Drill Jig to drill each 5/32″ hole to a little higher than finished depth for the FCG main pocket of 1.250″. Left and Right side fixture plat 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. To keep the lower receiver within tolerance, pay close attention to the tolerances as you machine. Use the 1/4″ End Mill at a mid-range RPM and then slowly trace around the outside perimeter of the small slot in the Drilling Top Plate – Remove the Drilling Top Plate. What follows is the detailed process (one of many available) to finish your AR15 or AR10 80% Lower Receiver into a ready to use part. Therefore, be sure to set your drill or mill depth appropriately. You’ll wish to let the shaft of the bit ride the interior shape of the plate to ensure an appropriate cut. This jig and these instructions work for any AR-15 (5.56, .223, 300 BLK) and AR9 (9mm) 80% lower. Instructions; 80% Lower Receivers for AR-15 & AR 308 Rifles admin 2017-10-17T23:47:59-07:00. Dismiss. Check out the product page for videos of how simple it really is, or our instruction manual page to see how simple we have made all of our products. STEP 3 – Place the jig assembly on its side (Side Plate screw heads UP), and use the 3/8″ Drill Bit to drill the Selector Switch hole. If you find burs or rough patches, polish and lightly mill them. Burnt Bronze Cerakote AR-15 Upper and 80% Lower Receiver Set Burnt Bronze Cerakote AR-15 Upper and 80% Lower Receiver Set $ 219.99 $ 169.99 $ 219.99 $ 169.99 Read more. Use the 1/4″ End Mill at a mid-range RPM and do your incremental down steps at about 1/8″. Progress Check – when you remove the Milling Top Plate, your 80% Lower should look like the image above. Consequently, generally all a shooter needs to finish milling an 80% lower is a milling jig kit and a milling took kit such as those offered by American Made Tactical, a vise, a router, manual mill, CNC mill, electric drill or a table top or standing drill press. In step seven, we’ll return the mill receiver to a 2.000” depth. STEP 9 (Optional) – Reattach the Milling Top Plate (as shown above) and continue with the jig assembly standing upright. We’re ghost gun owners who love our weapons and after milling and owning just about every 80% AR-15 lower on the market, we decided there had to be a better way. We recommend to drill each side separately by flipping the Drill Jig assembly over to the opposite side. Use the 1/4″ End Mill and SLOWLY press (plunge) the end mill thru the bottom of the FCG pocket. Be first to know about promotions and new product launches. Terms and Conditions The first template is typically marked with “3/8 DR 2.00 Deep From This Face.” Next, tighten the jig and lower it into your vise for further machining. quality AR15 lower products. With the jig secure, it’s time to install the template plate holder. We've made things easier than ever with the release of our Easy Jig® Gen 3! A heavy duty drill press may be sufficient, but NOT recommended, as the spindle may not be able to hold tolerances. You will seat the holder on top of the jig where the rounded edge rests along the buffer tube housing. Now, install the long 5/16” end mill bit and bolt the last template plate, marked “5/16” EM Thru Bottom,” to the jig. Use the 3/8″ End Mill at a mid-range RPM and start milling the small section between the FCG main pocket and upper Lug pocket going to a total depth of 0.630″. Once again, you can either drill through or just “start” those holes, and drill from both sides later. With our 80% lower jig, comprehensive instructions and how-to videos, you control production quality by performing the work firsthand. Bolt the plate holder to the jig side plates using the two biggest hex-head bolts included with the setup. Align both the jig and the lower with the tooling, then drill through the pilot hole guide on the top template plate. 80 Percent Lower Receiver Blog, Instructions And Guides For Lowers. Apply WD-40 when necessary. You may review all of the images to get a brief overview and/or we highly recommend that you read through everything BEFORE BEGINNING your Drilling and Milling to have a better understanding of the entire process before you start. 80% AR15/AR10/.308 Lower Receiver Jig Specific Instructions, Video's, Blueprints, Schematics and How to Information. You may wish to use a stop collar and calipers to verify the depth, as it must be exact. 80% Lower Receivers, AR15 80 percent lower Jig, AR 15 complete uppers, Rifle and Pistol Kits. You want the right side faced. But for completing an 80 percent lower AR build, you’ll need a few pieces of machinery on hand. This instructional guide's shows you how to complete an 80% lower using the Elite Builder 80% Jig and a basic drill press or mini-mill. That’s why, to this day, 80 percent lowers have experienced a boom in popularity. You can easily modify a standard AR15 80% jig to machine out your AR9 or AR45 80% lower. Now, install the long 3/8” end mill bit and bolt the second milling template to the jig. Shotgun vs. For the best cut, use shallow, precise movements to remove excess aluminum from the receiver. Of course IT IS from a Federal Law standpoint as well as our 2A but the local governments can also be a serious road block to happiness. You’ll cut through the floor of the 80% lower to create a slot for the trigger once done. Please read all of the directions from start to finish before starting any work on your lower. These various ways of completing an 80% lower receiver will help you understand what you need or can use to complete your 80% lower. There is only about 0.070″ of material to cut so you can just mill all the way through to the Trigger Guard area. Compare. Start drilling with the 3/8″ Drill Bit at every 1/8″ hole shown above as Blue. The goal of finishing the lower receiver is to mill out the following with the assistance of the jig: a. You may now remove the short end bit and first milling template. Leave it in place for now. Some leave it bare, however. A lower parts kit will not even fit in an 80% Lower until it has been machined into a complete firearm. 80% 1911 CLASSIC JIG INSTRUCTIONS . The Brownells Pivot Pin Tool Kit makes this step very easy. In addition to cutting costs, our 80% lower jig puts you in control of the work, letting you ensure the job is done perfectly to finish the receiver for your next build. Basically, you need to make Surface A flush with surface B on the diagram. Home Defense: AR-15 vs. STEP 2 – Then attach the Drilling Top Plate and use (2) short 10-24 allen head screws to secure the plate leaving bolts loose once again. With the central portion of the receiver cut to final depth ranges, both the 3/8” end mill bit and second milling template may be removed. Manufacturing 80% Lowers Since 2009 80% 1911 CLASSIC JIG INSTRUCTIONS DISCLAIMER: These instructions are intended for use by an individual ... milling machine. The first step in completing your new AR build is to secure the lower in the right side jig plate. Here’s where you’ll use it. Use the 1/4″ End Mill at a mid-range RPM and then slowly trace around the outside perimeter of the small slot in the Drilling Top Plate – Remove the Drilling Top Plate. TAKE YOUR TIME and be sure of each cut (check twice, cut once), and use the Drill Jig more as a “Point Guide” than a Jig and you will be able to use it several times if you like. Now, replace the original 3/8” drill bit with the short 3/8” end mill bit. This step does not require precise measurements. Wish, you control production quality by performing the work firsthand the setup lower machining MANUALS JMT AR-15 80... Properly complete wish, you must first install a pivot pin, a pin! 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