Now, install the long 5/16” end mill bit and bolt the last template plate, marked “5/16” EM Thru Bottom,” to the jig. Start drilling with the 3/8″ Drill Bit at every 1/8″ hole shown above as Blue. To do this, you need a pivot pin, a pivot pin detent and a pivot pin detent spring. Progress Check – when you remove the Drilling Top Plate, your 80% Lower should look like the image above. This new plate includes a smaller interior guide and says “3/8” EM 2.00 Deep From This Face.”. Also, don't forget, we offer the Foolproof Guarantee! Bolt the plate holder to the jig side plates using the two biggest hex-head bolts included with the setup. For the best cut, use shallow, precise movements to remove excess aluminum from the receiver. For most jobs, your hands are the best tools you have. Once the pilot holes are drilled, remove the 3/8” bit and pilot hole plate. 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. 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″. Set the depth to stop precisely 2.000” deep from the face of the template using a stop collar and calipers. By now, you have the rear shelf, and most of the primary receiver cavity machined. 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. The jig package included a 3/8” drill bit, which you’ll now want to install on your drill press or milling machine. Your 80% lower is now ready for assembly. 80 LOWER MACHINING MANUALS JMT AR-15 Polymer 80 Machining Instructions. Apply WD-40 when necessary. Tags: 80% Lower Receiver Guide, 80% Lower Receiver Instructions, Build An AR Rifle, Rifle Kit, Privacy Policy You can either “start” each hole, and then to drill to depth after removing the Top Plate. 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. In doing so, you’ll avoid excess chatter. According to the Second Amendment, all U.S. citizens hold the right to bear arms. 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. STEP 9 (Optional) – Reattach the Milling Top Plate (as shown above) and continue with the jig assembly standing upright. Hand held drills DO NOT work very well at all although there are customers who have reported using one. Using the 3/8” drill bit, complete the safety lever pinhole. On Kevin's 80% lowers he adds a 0.250 diameter locating hole to help him during his production runs. 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. In this post, we’re going to talk about routers. To keep the lower receiver within tolerance, pay close attention to the tolerances as you machine. Proudly Made in the United States of America, ​How to Build An 80% Lower: Beginners Guide. The final step, now with the receiver and jig horizontally placed, is to drill the hammer, trigger, and safety pinholes. Once the trigger slot is cut, the receiver’s fire control cavity is finished. A lower parts kit will not even fit in an 80% Lower until it has been machined into a complete firearm. SHOP JMT; JMT PRODUCTS. To use the Modulus Arms jig, you must first install a pivot pin in the 80-percent lower. Rated 5.00 out of 5 $ 105.00 – $ 110.50; Top rated products. Progress Check – when you are done drilling the correct number of 3/8″ holes, your 80% Lower should look like the image above. 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. 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. Here’s where you’ll use it. Once again, you can either drill through or just “start” those holes, and drill from both sides later. 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. But how do you build an 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. Shipping and Returns, All Shipping Currently At 4-6 Weeks. This document is intended to give a basic direction or guidance when completing or finishing a UFS 80% Lower Receiver. Don't overthink it, we've made it very easy. Therefore, be sure to set your drill or mill depth appropriately. Begin drilling while making sure that the drill bit is kept straight and perpendicular to the receiver. Now, install the long 3/8” end mill bit and bolt the second milling template to the jig. Dismiss. WarrHogg 308 AR 80% Lower Receiver Instructions Author: Loran Kelley, Polymer80 Co-Founder Warrhogg 308 AR ... milling process. Using a milling machine is preferred, but a hand grinder or Dremel tool will also work. 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. That’s why, to this day, 80 percent lowers have experienced a boom in popularity. Sitemap We mentioned you might want machining oil nearby for lubrication. When using the Modulus jig, you must install a pivot pin in the 80-percent lower. STEP 10 – Attach the Drilling Top Plate (as shown above) squaring and leveling once again to continue with the jig assembly standing upright. You’ll wish to let the shaft of the bit ride the interior shape of the plate to ensure an appropriate cut. The three side holes for the pins, on each side of 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. 308 PARTS. 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. 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. Use the 1/4″ End Mill and SLOWLY press (plunge) the end mill thru the bottom of the FCG pocket. Home Defense: AR-15 vs. Handgun, Breaking News: 80% Lowers Under Intense Fire, Company Statement: ATF Raid on Competitor Polymer80. You’ll cut through the floor of the 80% lower to create a slot for the trigger once done. Leave it in place for now. 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. Instructions to complete using a drill press. With the tools you need on-hand, it’s time to tackle your first 80% lower build. 80% 1911 Frames . It is the end user's responsibility to determine if finishing an 80% receiver is permitted by law in their state and/or municipality. Using the 5/32” drill bit, finish the hammer pin hole, trigger, and disconnector pinhole. Place the jig assembly on flat surface (Drill Press Table) standing upright and make sure everything is square and true. STEP 7 – Continuing with the jig assembly standing upright and the Drilling Top Plate removed. 80% Lower Receivers for AR-15 & AR 308. that once you Keep in mind start drilling, milling, or altering your 80% lower it becomes a … With the jig secure, it’s time to install the template plate holder. -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. You can easily modify a standard AR15 80% jig to machine out your AR9 or AR45 80% lower. You may remove both the jig and the lower from your vise and position the entire assembly horizontally for further drilling. 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. Everything You Need To Build An 80% Lower Receiver . – 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. For step three, you’ll now install the pilot hole drilling template using the two included countersunk hex-head bolts in the jig package. Use the 1/4″ End Mill at a mid-range RPM and do your incremental down steps at about 1/8″. STEP 5 – With the jig assembly standing upright, start drilling with the 5/32″ Drill Bit at every hole shown above as Green. Drill entirely through the sides of the receiver via the right side plate. 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. SHOP 80% LOWER RECIEVERS. Take your time, follow the instructions, and you're guaranteed a great result. Progress Check – when you remove the Milling Top Plate, your 80% Lower should look like the image above. You want the right side faced. Instructions; 80% Lower Receivers for AR-15 & AR 308 Rifles admin 2017-10-17T23:47:59-07:00. Sale! STEP 6 – Continuing with the jig assembly standing upright, start drilling with the 1/8″ Drill Bit at every hole shown above as Orange. To complete the lower you will be drilling three holes and machining two pockets. 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. It’s a question that all newcomers ask when they attempt their first rifle build. 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. Probably the most difficult of the 80% lowers to convert to a working firearm is the 1911. 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. NOTE – You can drill the Selector Hole through, or just start the hole in the side of the Lower and go back later to finish. We've made things easier than ever with the release of our Easy Jig® Gen 3! Note: your jig will probably not look identical to this, but the concept will work the same. No Problem. This step does not require precise measurements. PF940V2™ Pistol Frames, 80% Instructions Table of Contents ... Barrel Block Milling Procedure ... PF940V2 Pistol Frame Lower PF80-PF940V2 1 Red Jig for the PF940V2 P80-PG940V2-JIG 1 Locking Block Rail System Pin, 3mm diameterx25mm long MSC-PFP-PIN-3MM 1 Remember: To avoid misalignment, do not over-tighten the vise. 80% AR15/AR10/.308 Lower Receiver Jig Specific Instructions, Video's, Blueprints, Schematics and How to Information. 0 With the pilot holes drilled, the aluminum left in the fire control cavity may then be removed using the same method. 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. Overview: These instructions are meant to give you some direction in completing your Optimus Defense 80% Lower Receiver. Now, drill down 2.000” deep into the receiver from the face of the top template plate. Tighten all fasteners starting with Side Plate screws. Each instruction spelled out below corresponds to the image just above it. 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. If you are using a drill press for this step, which is designed to cut vertically solely, consider plunge-cutting, as the included end mill bits are center-cut and, thereby, designed for vertical and lateral cuts. One of the most modified parts is the lower receiver and there is a whole sub-market of 80% lower … Add to wishlist. In step seven, we’ll return the mill receiver to a 2.000” depth. 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 … Free shipping available with select purchases. Arms and other 80% lowers using only a drill press and a few common tools. Make sure to periodically pull the drill out of the guide hole to clear any chips. The 1911 is an old school hand fit firearm and it shows when you're doing an 80 1911 frame. We recommend to drill each side separately by flipping the Drill Jig assembly over to the opposite side. 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. 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″. The pins on the plate should rest inside the rear take-down of the AR lower and from the pivot pinholes. Lubricate the template plate guides and receiver using your machining oil to protect your drill bits. 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. 80 Percent Lower Receiver Blog, Instructions And Guides For Lowers. Left and Right side fixture plat Apply light pressure with the clamp to ensure the jig does not move during the process. Manufacturing 80% Lowers Since 2009 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. Carbon 50 AR-15 80% Lower; AR-15 80% Polymer Lower; Carbon 50 .308 80% Lower You’ll require this bit for the safety lever pinhole. 80% 1911 CLASSIC JIG INSTRUCTIONS DISCLAIMER: These instructions are intended for use by an individual ... milling machine. Specifically, which routers are best for finishing an 80% AR-15 or AR-308 lower receiver with our Universal Router Jigs. Remember: Do not remove the template holder from the top of the jig. STEP 2 – Then attach the Drilling Top Plate and use (2) short 10-24 allen head screws to … Do these instructions look confusing, or you just aren't sure what they mean? If you happen to mess up one of our lowers with one of our jigs, we'll replace it at a 50% discount. Legally built 80% AR-15 firearms. ATF Firearm Laws and Information. You may wish to use a stop collar and calipers to verify the depth, as it must be exact. STEP 8 – Attach the Milling Top Plate (as shown above) and continue with the jig assembly standing upright. You’re able to purchase an unfinished lower and complete the build yourself, thereby saving you time and money while avoiding legal hassle. Always remember to wear proper PPE Not because of any ridiculous milling requirements but primarily because all of the rest of the fitment after you've completed the frame. STEP 4 – Next, use the 5/32″ Drill Bit to drill both the Hammer Pin Hole and Trigger Hole. 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. Throughout this process, apply copious amounts of machining oil to the end mill bit and the template plate. AR-15 Jig Kit Milling Directions | … Please read all of the directions from start to finish before starting any work on your lower. Aluminum lowers are very hard and require more tools and supplies to properly complete. Stealth Arms' AR-15 Jig is designed to aid in finishing your AR-15 and 1911 80 Percent Lower Receiver. Once the trigger slot is cut, the receiver’s fire control cavity is finished. 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. Zombie Green Cerakote AR-15 Upper and 80% Lower Receiver Set 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. It is only intended to be used as an actual Drilling Jig just ONCE. The Brownells Pivot Pin Tool Kit makes this step very easy. The drill bushings ensure every pin hole is aligned. Using the left jig plate, secure the opposite side and stand the lower up vertically. Compare. 5 Ways of Completing an 80% Lower Receiver While the average AR-15 builder may not have access to all the tools mentioned here, he or she should have access to at least one or more. But how do you actually complete your 80% lower? quality AR15 lower products. Shotgun vs. Now, replace the original 3/8” drill bit with the short 3/8” end mill bit. 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. Terms and Conditions 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. Be first to know about promotions and new product launches. When milling around plate, shaft of end mill is able to hit side, ... AR-10 Gen 1 DPMS Anodized Billet 80% Lower Receiver. Align both the jig and the lower with the tooling, then drill through the pilot hole guide on the top template plate. Get assembly instructions here. 80% Lower Receivers, AR15 80 percent lower Jig, AR 15 complete uppers, Rifle and Pistol Kits. A heavy duty drill press may be sufficient, but NOT recommended, as the spindle may not be able to hold tolerances. As outlined in the 80% lower jig instructions, don’t start the drill until you’re sure the bit is fully inserted. You may remove both the jig and the lower from your vise and position the entire assembly horizontally for further drilling. We provide all the jigs and tools necessary to complete 80 percent lowers! The first step in completing your new AR build is to secure the lower in the right side jig plate. If you find burs or rough patches, polish and lightly mill them. 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. Check out the easy instructions on how to finish an 80% lower receiver. Replace the plate with the included milling template, marked “3/8 EM 1.375 Deep From This Face.”. 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. Hendricks Instructions to complete using a milling machine. TOOLING. 80% 1911 CLASSIC JIG INSTRUCTIONS . You’ll want your finished depth of the FCG pocket to be 1.250″. This jig and these instructions work for any AR-15 (5.56, .223, 300 BLK) and AR9 (9mm) 80% lower. NOTE – Be very careful NOT to go too deep. AR15 PARTS. 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″. You can either “start” each hole, and then drill to depth after removing the Top Plate. You’ll cut through the floor of the 80% lower to create a slot for the trigger once done. We stand behind all our products and we’re here to support you. 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. The goal of finishing the lower receiver is to mill out the following with the assistance of the … Our live inventory system means if you can add it to your cart, it's yours! Additionally, after the milling is completed, the build process seems to be where most people get into trouble, particularly during assembly and cleaning. These various ways of completing an 80% lower receiver will help you understand what you need or can use to complete your 80% lower. 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. Set your down steps to about 1/8″ and when you press the End Mill down (plunge) into the 80% Lower material, GO SLOW. 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. The goal of finishing the lower receiver is to mill out the following with the assistance of the jig: a. 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. 80% MILLING JIG FOR AR-15/9MM DISCLAIMER: These instructions are intended for use by someone who has knowledge of machining and machine tooling necessary to complete an 80% receiver. You’re done! Quick View; AR-15 80% Lowers, AR-15 Uppers. But for completing an 80 percent lower AR build, you’ll need a few pieces of machinery on hand. You’ll use the end mill bit similar to a drill bit, plunging downward until you reach the 1.375” depth mark. You will seat the holder on top of the jig where the rounded edge rests along the buffer tube housing. If you wish, you may coat the interior of the receiver to better protect the now-raw aluminum showing through. • Drill two 5/16” thru holes (one on … With our 80% lower jig, comprehensive instructions and how-to videos, you control production quality by performing the work firsthand. 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. Use the Drill Press to drill each 3/8″ Hole to a little above finished depth for the FCG main pocket at 1.250″. You may now remove the short end bit and first milling template. 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. Some leave it bare, however. (Only one template bolts to the top at a time.) 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. Basically, you need to make Surface A flush with surface B on the diagram.