Assemble, and test. Follow contour in this area with 1/2 end mill to 1.250 depth. At this point, you will remove the drilling template … Manufacturing 80% Lowers Since 2009 The 80% AR-15 Lower Receiver started it all, this was the first commercially available receiver on the market and had a determination from the ATF saying it was not a firearm. Make sure they are aligned perfect. Turn the jig upside down and insert your 80% lower (Photos 2 & 3). Lastly finishing the FCG will require either a mill bit or you can also use a router with our jig. A lower parts kit will not even fit in an 80% Lower until it has been machined into a complete firearm. ShopFox M1036 Features ~$400 Motor: … Be sure to also check out our selection of 80% pistol frame kits from Polymer80 , featuring precision-machined frame kits to fit Glock 19, 23 and 32 … The #1 manufacturer of 80% lowers tool kits. The finish is nice and smooth and you can mill about 5 lowers before the end mill is dull. – A drill press is a pedestal style drill that is mounted to a stand. 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. Drill trigger, hammer, and selector holes first, then mill the fire control pocket and trigger slot. Leave it loose for now. AR-15 80 percent lower receiver Combo Sets include one 80% AR-15 type lower and one AR-15 Jig set. If you prefer to work in a vise, take the … 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 will need a set of drill bits for the hammer trigger hole (5/32) as well as a drill bit for the safety hole (3/8). There is a short pin with a ring on it: push it through the front holes in the jig and through … Author: bmiller Created Date: With a good jig and accompanying specialized end mill cutting tool, machining results of the fire control group pocket rivaling CNC mills … PF940V1.5 80% Pistol Frame • PF940V1.5 80% Polymer Pistol Frame Instructions (PDF): Click Here . .005" in width of the pocket becomes more problematic with trigger walk, but it can be shimmed out. This is exactly what our 80% lower jig for 80 percent lower kits and custom tools help you do. submit that a .525" depth for the rear shelf take-down pocket is more than sufficient (just like in the AR-10B original prints)...It will give you a stronger lower and will require less machining time for your 80% builds. Finishing a lower requires a milling machine or drill press, a fixture if you choose the drill press method, some drills and end mills and very basic machine skills. Drilling of the trigger … Move the cutter around the pocket in a clockwise direction (conventional milling direction). In fact, the metal piece is openly sold by various vendors , … 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. Depth gauges that can measure depth to 1/100 th of an inch are expensive. The sale of AR-15 blanks (sometimes known as "80 percent" lower) is not restricted. They currently sell the 80 percent lowers for $155 and … You're not going to save money. 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 … The jig includes plates for the different steps of machining out the lower, as well as a tool kit including drill bits and endmills. … Milling out of the receiver interior. The most important thing with doing an 80% AR lower is the trigger pin, and safety selector holes. AR Lower Receiver Step-by-Step Chapter 2 13 Here is an alternate method for cutting the clamp flat. Includes: 80 percent complete AR-15 type Lower made of 7075 T6 Aluminum that has all machining operations completed except for: 1. The beautiful billet lowers in the pictures came from Juggernaut Tactical. Buy today or give us a call for more information about our 80 percent lower receivers for sale. 80% Arms sells a custom manufactured 2 flute solid carbide end mill designed to work excellent with the high speed laminate routers. Most 80% lowers go for that or more. With simple tools and point and click software, the machine automatically finds and aligns to your 80% lower to get to work. Specifically designed for their 80% lowers but compatible with any mil-spec lower, the Optimus Defense AR-15 Lower Drill Jig is capable of completing a lower to mil-spec tolerances. 3. Align the jig and lower with your tooling, and begin drilling through each pilot hole guide on the template plate into the 80% lower receiver 2. Forgetting these… Two things a lot of new 80% lower receiver makers will do is … Load the 1/4" end-mill and set the final milling depth as before in Step 15. I have an 80% lower and need to complete it. Find out why our toolkits are the best in the industry. Seems a bit crude. A great deal on an 80% lower would be $50. ... 80% Lower. Solution: Modulus Arms provides a depth gauge that sets the final dimension for both the drill and end-mill for all three required depth controlled features. This jig and these instructions work for any AR-15 (5.56, .223, 300 BLK) and AR9 (9mm) 80% lower. Dimension shown in ( ) are for reference. Ready to build your own AR-15 rifle or pistol from scratch? Yeah, you don't finish 80% lowers to save money. It's more about the satisfaction of finishing it yourself. You can buy a stripped lower for about $70. You can also hold the lower in a vise using the driver side and passenger side pads. Ghost Gunner is a general purpose CNC mill that gives you the ability to finish a growing library of mil-spec 80 percent lowers to completion. × Insert the lower into the jig Photo 2 Photo 3. Furthermore, the gauge is also used to indicate the top of the lower and the maximum depth of cut. Finishing An AR-15 80% Lower Receiver ... CNC Gunsmithing Drill Jig and Milling Adapter Kit - 80% AR15 Lower Receiver from Kevin (with solid fire control pocket) ... cuts and keep measuring the depth until you finally mill a depth of 1.249. Each 80% Lower AR-15 Jig contains side plates and top plates for easy use for beginners to experts to build an AR-10 Firearm. Drill Press. Support the lower on a 1-2-3 blocks and using the passenger side clamp pad, clamp it to an angle plate. Cutting of the trigger slot. Our 80% AR-15 Jig is made to work with most 80% AR-15 Lower receivers. 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2020 milling depth for 80% lower