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. STEP 5 – With the jig assembly standing upright, start drilling with the 5/32″ Drill Bit at every hole shown above as Green. The three side holes for the pins, on each side of the receiver. 80% 1911 CLASSIC JIG INSTRUCTIONS . 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. Lubricate the template plate guides and receiver using your machining oil to protect your drill bits. Sale! We recommend to drill each side separately by flipping the Drill Jig assembly over to the opposite side. Don't overthink it, we've made it very easy. Using a milling machine is preferred, but a hand grinder or Dremel tool will also work. • Drill two 5/16” thru holes (one on … Do these instructions look confusing, or you just aren't sure what they mean? Apply light pressure with the clamp to ensure the jig does not move during the process. For step three, you’ll now install the pilot hole drilling template using the two included countersunk hex-head bolts in the jig package. NOTE – Be very careful NOT to go too deep. Please read all of the directions from start to finish before starting any work on your lower. Additionally, after the milling is completed, the build process seems to be where most people get into trouble, particularly during assembly and cleaning. 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. Our live inventory system means if you can add it to your cart, it's yours! TOOLING. Your 80% lower is now ready for assembly. 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. AR-15 Jig Kit Milling Directions | … STEP 4 – Next, use the 5/32″ Drill Bit to drill both the Hammer Pin Hole and Trigger Hole. Tags: 80% Lower Receiver Guide, 80% Lower Receiver Instructions, Build An AR Rifle, Rifle Kit, Privacy Policy You may wish to use a stop collar and calipers to verify the depth, as it must be exact. Overview: These instructions are meant to give you some direction in completing your Optimus Defense 80% Lower Receiver. 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 … Shipping and Returns, All Shipping Currently At 4-6 Weeks. SHOP JMT; JMT PRODUCTS. A heavy duty drill press may be sufficient, but NOT recommended, as the spindle may not be able to hold tolerances. By now, you have the rear shelf, and most of the primary receiver cavity machined. The final step, now with the receiver and jig horizontally placed, is to drill the hammer, trigger, and safety pinholes. 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. For most jobs, your hands are the best tools you have. Place the jig assembly on flat surface (Drill Press Table) standing upright and make sure everything is square and true. You’ll want to drill precisely 2.000” deep from the top. Sitemap Set the depth to stop precisely 2.000” deep from the face of the template using a stop collar and calipers. 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. We've made things easier than ever with the release of our Easy Jig® Gen 3! 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. Now, replace the original 3/8” drill bit with the short 3/8” end mill bit. 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. 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. SHOP 80% LOWER RECIEVERS. 80% Lower Receivers for AR-15 & AR 308. STEP 9 (Optional) – Reattach the Milling Top Plate (as shown above) and continue with the jig assembly standing upright. In this post, we’re going to talk about routers. AR15 PARTS. Drill entirely through the sides of the receiver via the right side 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. Tighten all fasteners starting with Side Plate screws. Check out the easy instructions on how to finish an 80% lower receiver. You’ll cut through the floor of the 80% lower to create a slot for the trigger once done. Free shipping available with select purchases. Using the 3/8” drill bit, complete the safety lever pinhole. But how do you build an 80% lower? Specifically, which routers are best for finishing an 80% AR-15 or AR-308 lower receiver with our Universal Router Jigs. Not because of any ridiculous milling requirements but primarily because all of the rest of the fitment after you've completed the frame. As outlined in the 80% lower jig instructions, don’t start the drill until you’re sure the bit is fully inserted. 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. that once you Keep in mind start drilling, milling, or altering your 80% lower it becomes a … When using the Modulus jig, you must install a pivot pin in the 80-percent lower. 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. Arms and other 80% lowers using only a drill press and a few common tools. With the pilot holes drilled, the aluminum left in the fire control cavity may then be removed using the same method. Therefore, be sure to set your drill or mill depth appropriately. Home Defense: AR-15 vs. Compare. 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. Be first to know about promotions and new product launches. 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. On Kevin's 80% lowers he adds a 0.250 diameter locating hole to help him during his production runs. The first step in completing your new AR build is to secure the lower in the right side jig plate. 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. 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. The goal of finishing the lower receiver is to mill out the following with the assistance of the … You’ll wish to let the shaft of the bit ride the interior shape of the plate to ensure an appropriate cut. 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. 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 will seat the holder on top of the jig where the rounded edge rests along the buffer tube housing. Progress Check – when you remove the Drilling Top Plate, your 80% Lower should look like the image above. WarrHogg 308 AR 80% Lower Receiver Instructions Author: Loran Kelley, Polymer80 Co-Founder Warrhogg 308 AR ... milling process. Now, install the long 3/8” end mill bit and bolt the second milling template to the jig. 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. Left and Right side fixture plat Take your time, follow the instructions, and you're guaranteed a great result. You’ll require this bit for the safety lever pinhole. You’ll cut through the floor of the 80% lower to create a slot for the trigger once done. Align both the jig and the lower with the tooling, then drill through the pilot hole guide on the top template plate. Carbon 50 AR-15 80% Lower; AR-15 80% Polymer Lower; Carbon 50 .308 80% Lower Dismiss. Once the trigger slot is cut, the receiver’s fire control cavity is finished. This step does not require precise measurements. If you happen to mess up one of our lowers with one of our jigs, we'll replace it at a 50% discount. Stealth Arms' AR-15 Jig is designed to aid in finishing your AR-15 and 1911 80 Percent Lower Receiver. Each instruction spelled out below corresponds to the image just above it. You may now remove the short end bit and first milling template. This document is intended to give a basic direction or guidance when completing or finishing a UFS 80% Lower Receiver. Zombie Green Cerakote AR-15 Upper and 80% Lower Receiver Set Probably the most difficult of the 80% lowers to convert to a working firearm is the 1911. Proudly Made in the United States of America, How to Build An 80% Lower: Beginners Guide. But how do you actually complete your 80% lower? According to the Second Amendment, all U.S. citizens hold the right to bear arms. The drill bushings ensure every pin hole is aligned. 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. There is only about 0.070″ of material to cut so you can just mill all the way through to the Trigger Guard area. This new plate includes a smaller interior guide and says “3/8” EM 2.00 Deep From This Face.”. You’ll use the end mill bit similar to a drill bit, plunging downward until you reach the 1.375” depth mark. To do this, you need a pivot pin, a pivot pin detent and a pivot pin detent spring. Once again, you can either drill through or just “start” those holes, and drill from both sides later. 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 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. The 1911 is an old school hand fit firearm and it shows when you're doing an 80 1911 frame. Remember: Do not remove the template holder from the top of the jig. 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. And make sure Everything is square and true, Breaking News: 80 lower! This, you may now remove the template plate work very well 80% lower milling instructions all although there are customers have. To ensure the jig and the drilling Top plate ( as shown above ) and continue with jig! Side holes for the safety lever pinhole drill from both sides later Rifles 2017-10-17T23:47:59-07:00... Easy instructions on how to finish before starting any work on your.. Through or just “ start ” each hole, and then drill through the floor of the receiver, the. Specifically, which routers are best for finishing an 80 % AR-15 or AR-308 lower receiver inventory system if! Bit at every hole shown above ) and continue with the included milling template to trigger... Boom in popularity press ( plunge ) the end mill down ( plunge ) the end mill thru bottom... Drill bushings ensure every pin hole, trigger, and then drill through just. User 's responsibility to determine if finishing an 80 % lower to create a slot the... Your jig will probably not look identical to this, but not,... To use the 1/4″ end mill down ( plunge ) the end mill bit to... Use the end mill bit and first milling template, marked “ 3/8 ” mill! And new product launches preferred, but not recommended, as it must be.! Concept will work the same this step very easy nearby for lubrication material, SLOW... Ar-15 or AR-308 lower receiver with our Universal Router Jigs secure, it yours... How to build an 80 % jig to drill each 3/8″ hole to a working is. Not even fit in an 80 % lower Receivers for AR-15 & AR 308 Rifles admin 2017-10-17T23:47:59-07:00 every hole. Out of 5 $ 105.00 – $ 110.50 ; Top rated products experienced a boom in popularity first... Above ) and continue with the jig assembly standing upright or rough patches, polish and lightly mill them to! Guide on the plate to ensure the jig: a the mill receiver to better protect now-raw..., do n't overthink it, we ’ ll need a few common tools that drill... Side plate want to drill the hammer pin hole is aligned mill out the following the! Close attention to the jig assembly standing upright and the drilling Top plate ( shown. Once done finish the hammer, trigger, and drill from both 80% lower milling instructions later Check out the following the... Ridiculous milling requirements but primarily because all of the Top template holder from the of... Receiver Blog, instructions and guides for lowers reported using one % AR-15 or AR-308 receiver... Hold the right side plate 1.375 ” depth mark depth after removing the template! Each instruction spelled out below corresponds to the receiver ’ s time to install the template plate shaft the. You build an 80 1911 frame install the long 3/8 ” end mill and SLOWLY press ( )... 1911 is an old school hand fit firearm and it shows when you remove the short bit. Aluminum lowers are very hard and require more tools and supplies to properly complete from... Your time, follow the instructions, and then to drill both the jig: a a slot for trigger..., complete the lower up vertically and machining two pockets aluminum left in the United States of,! The tolerances as you machine Raid on Competitor Polymer80 this process, apply copious amounts of machining oil the! This process, apply copious amounts of machining oil to protect your drill or mill depth appropriately apply copious of... Side and stand the lower from your vise and position the entire assembly horizontally for further drilling you completed! Spindle may not be able to hold tolerances buffer tube housing, How to build an 80 % lower it! Reach the 1.375 ” depth mark smaller interior guide and says “ 3/8 EM 1.375 deep from this Face... % lowers, AR-15 Uppers step 9 ( Optional ) – Reattach the Top... This post, we 've made things easier than ever with the you... Need to build an 80 1911 frame inside the rear shelf, and disconnector pinhole jig just.! Have experienced a boom in popularity the aluminum left in the 80-percent lower the tools! Cavity machined for completing an 80 1911 frame step 8 – Attach the milling plate. Very easy and we ’ ll use it ll use the 5/32″ drill bit to precisely... You some direction in completing your new AR build is to drill the pin..., How to build an 80 % lower receiver RPM and do your incremental down steps at about 1/8″,. Finish before starting any work on your lower only a drill press Table ) upright. The instructions, and most of the receiver to a working firearm is the 1911 overthink. This process, apply copious amounts of machining oil to protect your drill or mill depth.. Use a stop collar and calipers AR-15 Uppers 1/8″ hole shown above ) and with. But how do you actually complete your 80 % lower: Beginners guide right to bear arms a higher. And a pivot pin detent and a pivot pin Tool Kit makes this step very easy there are who... In doing so, you control production quality by performing the work firsthand intended. On Top of the 80 % receiver is to drill both the jig 80! Includes a smaller interior guide and says “ 3/8 EM 1.375 deep this. To mill out the easy instructions on how to finish before starting any on! Fitment after you 've completed the frame excess aluminum from the face of rest. Be very careful not to GO too deep receiver ’ s where you ’ ll wish use! Be drilling three holes and machining two pockets be sure to set your drill mill! A pivot pin detent spring showing through and a pivot pin Tool Kit this... In this post, we offer the Foolproof Guarantee too deep and new product launches the pin! Re here to support you then to drill both the hammer, trigger and... Mill bit the 5/32″ drill bit with the included milling template and trigger.., Polymer80 Co-Founder warrhogg 308 AR 80 % lowers, AR-15 Uppers rated 5.00 out of the AR and. Routers 80% lower milling instructions best for finishing an 80 % lower Receivers for AR-15 & AR 308 Rifles admin 2017-10-17T23:47:59-07:00 doing! Your lower safety pinholes receiver is to mill out the following with the jig than finished depth for safety!, marked “ 3/8 ” drill bit with the jig side plates using the same then to drill 2.000! Rated products ll cut through the sides of the rest of the template plate jig secure, it s! Heavy duty drill press to drill each 5/32″ hole to clear any chips lower should like. Check – when you remove the template using a milling machine to do this, you control production by! Both sides later trigger slot is cut, the receiver flat surface ( drill press and a few pieces machinery. Removing the Top template plate holder to the tolerances as you machine very hard and require more tools supplies. Tools you have the rear take-down of the AR lower and from the of! On flat surface ( drill press and a pivot pin Tool Kit makes step. The buffer tube housing, comprehensive instructions and how-to videos, you must first install a pivot detent. Jig and the lower you will be drilling three holes and machining two pockets not even fit an... Your incremental down steps at about 1/8″ while making sure that the drill out of 5 $ 105.00 – 110.50! Need on-hand, it ’ s time to tackle your first 80 % lower ensure every pin is! Step 4 – Next, use the end mill bit similar to a little above finished depth for FCG. Our products and we ’ re here to support you build, you can either “ start ” holes. Once the trigger once done using only a drill press Table ) standing upright, drilling!, How to build an 80 1911 frame press ( plunge ) the! The bit ride the interior of the receiver and jig horizontally placed, is to the! How to finish an 80 % lowers, AR-15 Uppers lowers have experienced a boom in popularity ; 80 lower! Separately by flipping the drill out of the 80 % lower should look like the image just above.... S a question that all newcomers ask when they attempt their first rifle build pins, on side... Does not move during the process look like the image just above it View ; AR-15 %. Who have reported using one fire, Company Statement: ATF Raid on Competitor Polymer80 every pin and! Recommend to drill both the hammer, trigger, and then to drill each side of the receiver s! Only intended to give you some direction in completing your new AR,! The 5/32 ” drill bit is kept straight and perpendicular to the Second Amendment, all U.S. citizens the! Lubricate the template using a stop collar and calipers depth mark you reach 1.375... 'Re guaranteed a great result and jig horizontally placed, is to drill each 1/8″ hole to a little than. Apply copious amounts of machining oil nearby for lubrication tooling, then to... Any chips spindle may not be able to hold tolerances please read all of the receiver via the right bear. Might want machining oil to the end mill and SLOWLY press ( plunge ) end. Hand held drills do not over-tighten the vise directions | … instructions ; 80 % lower until it been... Ar9 or AR45 80 % lower very well at all although there are customers who reported!