Enjoy easy and fast assembly for AR-15 and AR-308 with our 80% lower receiver kits. 80% LOWERS AR-15 80% Lower Receivers, .308/AR-10 & 80% Lower Jigs. This makes the process easier and reduces friction and heat. If you cut into the trigger area and fear weakening the receiver use some form of epoxy to sell in where you drilled. If you drill into the selector detent hole the best way to fix it is difficult. All Orders are usually shipped next business day. AR-15 FDE Rifle Kit 16″ Stainless Barrel 12″ /FDE Keymod Rail Handguard/ With FDE 80% Lower/ Black MAGPUL MOE Stock/ Black MAGPUL MOE Grip/ Enhanced Trigger Guard /- … Ground enough clearance on the selector to work and it's been running fine for 4 years now. 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. You Completed Your AR 15 Lower Receiver, Now What? Manufacturer's sale page for the Easy Jig gen 2 for AR15 and AR10 . Drilling too deep into your 80% lower presents some really big problems. Move to semi, hammer still doesn't release. Both jigs look alike and have similar characteristics. Too much friction and too much heat will melt the shards of aluminum to drill bits and to end mills. Ultimate Polymer 80 Glock Troubleshooting Guide Today we're going to cover the common problems some people face with their Polymer 80 PF940C / PF940V2 Build. I had an issue with a trigger in an 80% lower I machined a couple years ago. The lug that you have circled in red does not fit into the cutout in the AR 80% lower. Making your own AR15 lower receiver from an 80%’er usually requires creating a fire control pocket and drilling three holes: two for the trigger and hammer pins, and one for the selector switch. No complaints. While testing out the selector switch, I noticed that it's possible to (barely) pull the trigger on SAFE, enough to engage the hammer. Most handheld routers operate at 2,000 to 30,000 RPM. Sorry, but a pair of Vice Grips will not work, unless you like a marred castle nut. Notice the solid area where the trigger would go, making it a paperweight, not a firearm. 80% Lower Receivers ... A good example of this is the trigger group and the pins that secure them. 80% lower it becomes a firearm and all local, state , and federal firearms laws apply. AR15.COM is the worldâs largest firearm community and is a gathering place for firearm enthusiasts of all types. Meanwhile, an 80% lower is technically not a firearm until you finish machining it, so you can get them delivered straight to your house without paying FFL fees. It is your responsibility to check the legality of finishing an 80% lower in your area. Enjoy FAST SHIPPING and SAVE at 80-lower.com today! 80 ... A good example of this is the trigger group and … Mistakes will always be made, but with a little know how it’s possible to minimize and reduce the risk greatly. Sometimes you can fix this is, but in some severe cases, it will be impossible to do so. I am rocking the PSA MOE lower build kit, and have failed to replicate without live ammo, even through full function check. While filing the Gen 3 trigger bar extension is an understandable and reasonable 'short term' solution, in the long term, it may be a good idea to install a Gen 4 trigger bar assembly in your Poly 80. Shop our AR-15 or 80% AR-308 complete lower receivers and kits to get all the parts you need to complete your custom build with precision. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. Lastly, do not forget cutting oil! Sometimes you can fix this is, but in some severe cases, it will be impossible to do so. Yep, tried an ambi and standard. Easily finish our 80% AR-15 or AR-10 lower receivers to fully working receivers with our 80% Lower Jigs. The first is a stop collar, also known as a depth collar. If you have a AR-15 lower that is correct you can easily strip it down far enough to really compare the fire control pin holes with your polymer 80% lower I often have a bit of trouble locating the exact place I want the trigger to go, but I haven't seen any major problems with making a too-large trigger opening. 0 Cart $0.00. With few exceptions, most parts from one manufacturer work with another. When drilling in the back pocket is you go too wide you’ll run into the selector detent hole. I can "wiggle" the hammer and trigger and the hammer is solid will no disengage. I’ve used the ITF pack on an 80% lower, used my current buffers and buffer springs, I’ve even used it on an Ar equipped with the deadfoot arms shortened Bcg and buffer system. I'm guessing my selector hole is a fuzz canted. A castle nut wrench is usually included in an armorer’s tool, which can be invaluable for an AR owner anyway. Cutting oil will make life much easier for you and will preserve your tools. We have been blogging a series on articles on building an AR-15 lower receiver from an 80% complete billet.If you don’t have the equipment to work with metal, EP Lowers sell a 80% complete fiber reinforced polymer lower that can be finished without a costly jig. If the Side Walls are cut too wide your trigger may slide left to right. Milling with Router, 80% Easy Jig. Meanwhile, an 80% lower is technically not a firearm until you finish machining it, so you can get them delivered straight to your house without paying FFL fees. Around the same time that I was looking for this frame, I was working on our 80% Arms AR15 jig video. PSA kits will be available on July 3rd. 5 Make sure they are aligned perfect. 80% AR Rifle/Pistol Lower Receivers FAQ What is an 80% Lower Receiver? Any use of this content without express written consent is prohibited. Ultimate Polymer 80 Glock Troubleshooting Guide Today we're going to cover the common problems some people face with their Polymer 80 PF940C / PF940V2 Build. It went binary on 4 trigger pulls out of 50 rounds. Cutting oil lubricates as you drill. The weight of the 5D Tactical is more substantial due to the large sited plates that they use. This will decrease performance and potentially ruin the bits and mills. Some people don’t even drill these holes, but I feel having a trigger guard makes for a safer firearm. Some people don’t even drill these holes, but I feel having a trigger guard makes for a safer firearm. To avoid this? Had that issue with first one I built. Castle Nut Wrench. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. If you have never finished an 80% lower you need to take your time, and read the manual. Please note this Router Jig PRO Tool Kit is for the Router Jig PRO only. Anodizing needs to use something like Birchwood Casey Aluma Black. I refused to start over on a perfectly good lower. Under the direction of another member here, an 80% lower was milled and the measurements given were faulty. These Purple Anodized 80% Lower AR-15 receivers can be finished with the 80% Lower AR-15 Jig and held to tight tolerances by the DIY Gunsmith. Things to watch out for (But can be fixed)! MENU MENU. Our Patent Pending ReadyMILL ™ is packaged with the drill bits necessary for finishing an 80% lower at home. JMT ‘s AR-15 80% Polymer Lower (Gen2) is a prime example of intelligent humans thinking critically to produce a solid product. Things to watch out for (But can be fixed)! Have a good 5D pro jig. At 80-lower.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. Change ), You are commenting using your Google account. However the same lug fits perfectly on other functioning AR's I own. Let's be honest: the main reason for messing with an 80% lower is to have a gun "off the books." As with several other holes in the AR15 lower, the trigger guard pin holes aren’t … Here's an MBT side by side with the mil spec. They also won’t shift and can be shimmed into place. Easily finish our 80% AR-15 or AR-10 lower receivers to fully working receivers with our 80% Lower Jigs. Anderson 80% lower, Anderson trigger with JP 3.5 lbs spring kit, Spikes LPK, Kaw Valley carbine buffer kit. 80 Lower Drilling and Tooling Mistakes #1: Rough cuts, uneven surfaces. Your selector hole is a little off. Specifications: Hole Sizes: Selector Pin Hole: 3/8” (0.375”) Trigger Pin Hole: 5/32” Welcome to GhostGlocks.com and our reviews of the best 80% Glock kits, parts, and accessories. All Rights Reserved. Optional: • MFT Folding Polymer Sight Set Front and Rear Combo • Lucid Sight Package includes: Lucid HD7 Red Dot Sight Gen 3 Black (Specs. On its product webpage, JMT calls out nine features of the Gen2 lower receiver: This is a new design and it is taking the market by storm. Optional: • MFT Folding Polymer Sight Set Front and Rear Combo • Lucid Sight Package includes: Lucid HD7 Red Dot Sight Gen 3 Black (Specs. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. The internet is an excellent source to check, especially Youtube. Install the selector, hammer doesn't release on safe which is good. Not so with the AR-10. The assumption that this tool will work good enough is a dangerous one. 80 Lower Receivers: 5 Differences Between a Good and Bad Lower, 80 Percent Lower Receivers: 5 Reasons to Complete Your Own, AR-15 Lower Receiver: This Single Product Will Officially Complete Your Build, 7 Upgrades to Your AR15Lower Receiver that Make a Big Impact, 5 Tips to Get the Most out of Your 80 Lower Receiver Build, Bits made for Metal. Ok my next issue is a bigger one, I milled out Polymer 80 lower and when I test fired the gun the hammer will fall when the trigger is reset. 80% LOWERS AR-15 80% Lower Receivers, .308/AR-10 & 80% Lower Jigs. Carbon 50 AR-15 80% Lower; AR-15 80% Polymer Lower; Carbon 50 .308 80% Lower.308 Equalizer polymer lower; Saber Single Stage Drop In Trigger; Black OPS Single Stage Straight Drop in Trigger; AR Triggers Kits; Warranty; MANUALS; GALLERIES. The Ultimate AR 15 Jig: The 5D tactical Jig, Finish Your AR 15 Pistol Build with The KAK Shockwave. The UFS Gen. 4 ar-10 .308 black anodized 80% closed t guard lower receiver is the nicest design on the market, bar none. DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. That little hump on the back of the MBT looks to minimize take up? Instead of listing all the wrong tools you can use, let’s list all the right ones. Recently 80% Arms released a completely redesigned version of their original Easy Jig router-based system. What Makes our Premium 80 Percent Lower, Well… Premium? 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. I happen to find the blemished 80% Tactical Machining 1911 frame that I was looking for along with my 80% AR lower at the same place (www.righttobear.com). On its product webpage, JMT calls out nine features of the Gen2 lower receiver: Operational problems with Palmetto State Armory lower receiver has been corrected with an updated 2 stage safety. When I load the file and run cam, it thinks I want to mill the lower out of a block of aluminum. One big thing to remember is to stop and check the stop collar on occasion. You’ll need something like Aircraft Grade JB weld to fill the hole. ( Log Out / When using your < a href=”https://www.ar-15lowerreceivers.com/ar-15-80-lower-jig/” title=”80 lower jig” target=”_blank”>80 lower jig, make sure everything is perfectly in place! The depth of the fire control pocket is 1.243, spec is 1.249, diff of 0.006". TNVC NOW ACCEPTING ORDERS for one of the mostly hotly anticipated releases of 2020: the TNV/DTNVS! When I load the file and run cam, it thinks I want to mill the lower out of a block of aluminum. Below are two pics showing the demo build. I'm running a .223, .300 BO, 6.8 spc, and a 7.62x39. This article appeared first at: https://www.ar-15lowerreceivers.com/blog/5-biggest-mistakes-when-finishing-your-80-lower/. Do you have a non 80% build lower you can drop the MBT into and function check? Planning on ordering more from them in the future. Assemble, and test. The drill bits you use to finish your 80% receiver need to be made for chewing through aluminum. The safety selector switch is very tight on top of the back side of the trigger, and when I pull the hammer back, the disconnect … No law, written, conceived or passed during the history of civilized mankind has ever saved a life or prevented a crime, for criminals, by definition do not obey the laws anyway. I've put several thousand rounds thru each rifle and thesee lowers show no signs of wear. The 5D walls are supposed to be 1/2″ thick and the 80% Arms walls are supposed to be 3/4″ thick. Anyway, issue is installed the MBT-2 trigger, it functions fine without a selector installed. Gen2 utilizes the same special composite/polymer blend as Gen1, lending itself to increased durability while remaining easy to mill. I'm having trouble either understanding or not knowing what I'm doing, probably the latter since I'm fairly new. Roll Pin Punches – Drive pin punches can work to install roll pins, but they run the risk of destroying a roll pin. This prevents the drill from going deeper that required. Exposed aluminum can rust and oxidate as well. 0 Go. The new popular rate for AR-15 lowers is eighty per cent. Tags: 80% Lower Receiver, gun guy thoughts, Polymer80, Ruined, STOP the madness Let’s face the facts, it isn’t hard to ruin something if your primary tool of destruction is a Dremel. Thanks for all the help everyone. The 80% project is almost complete. I haven't looked at my prints, but I don't think that a little extra room in the trigger cavity will cause any problems as long at the safety lever has not been compromised. So I have milled and drilled 4 unique 80% lowers. Make sure and deburr your fire control and selector holes after drilling. Trigger in question works in other 80% lower with three different selectors. Small Brass hammer – When it comes to installing a lower parts kit you need an impact device that is accurate. From the time you start milling an 80% lower to the time you connect upper to lower you are at risk. Palmetto State Armory PA-10 upper receivers will not fit on the 80% Arms lower receiver. The 80% project is almost complete. Micrometer depth is still showing a few thousanths shy of 1.25". Technically. For The hammer and trigger pins could have small burs or imperfections that would cause the trigger or hammer (or both) to bind or operate poorly. We provide the best deals around for 80 percent kits and parts while working to support the rights of the firearms industry. Ops checked and no joy. I want Fusion 360 to see the 80% lower as the final product and I want to run a milling solution for just the fire control pocket. • MFT Enhanced Trigger Guard • MFT Red & White Light Torch Light • The 80% lower will be deep engraved with "The Big Bad Wolf" on the magwell • 1 Color Cerakote, optional Cerakote upgrades. 0 Go. Enjoy easy and fast assembly for AR-15 and AR-308 with our 80% lower receiver kits. Enjoy FAST SHIPPING and SAVE at 80-lower.com today! Modded the selector, works great now. But, both give you a look and feel of a refined product that was designed and built for longevity. This is the second lower I did with the 5D kit. The only problem is it had started firing on the release of the trigger too. These accessories cost $20 each or a set of two is $30. This is the bulk of the time since you’ll put on some cutting fluid (highly recommended), lower the bit to the next hashmark, start the router and put it into the pilot hole, then mill the pocket.. Another pro tip is to have your router on the highest speed and to make sure you start milling each time from the pilot hole. Measure twice, cut once, and take your time! ( Log Out / Mill a little more? ETA: For a trigger/ hammer reference: Detroit_Gunworks_Skeleton_lower.html I've been working on the Polymer 80 lower I got from Ares Armor during their closeout sale and my trigger doesn't have enough room to travel. Copyright © 1996-2020 AR15.COM LLC. This is a very easy mistake to make as you build your AR-15. The winner of the look and feel category is 5D tactical by a slight margin. This is a complete router tool kit needed for finishing an 80% lower receiver with our Router Jig PRO. I suggest buying these. Did all the combos, selector hole must have been fubar. We all make mistakes, it just happens, and we aren’t perfect. Gen2 utilizes the same special composite/polymer blend as Gen1, lending itself to increased durability while remaining easy to mill. When it comes to building your own pistol from an 80% lower we highly recommend the Glock lineup because their polymer frames are easy to finish and they have a practically unlimited aftermarket. First one measures 1.240 to the bottom, functions fine. This is number one on the list because it is the most common issue when finishing an 80% lower. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. AR-15 80% Lower. Very easy to complete and they hold up fantastic. INTRODUCTION. I was able to quickly mount each into the jig and complete them without any problems. Use a healthy dose of blue painter’s tape when assembling the magazine catch and assembly. [ARCHIVED THREAD] - Trigger problem on 80% lower, https://www.AR15.Com/media/mediaFiles/413997/PXL_20201015_003457325_jpg-1636011.JPG. Big plus! Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. I'm looking to build one more in 450 Bushmaster and I see no problems with using the EP lower. To get a clean, precise cut on your 80 lower with a handheld router and end mill bit, you'll need to mill your 80 lower using the highest allowable cutting speed. This is the common mistake made out of negligence. Change ), You are commenting using your Twitter account. Marring the finish isn’t a big deal in terms of weapon operability. Anodizing or Cerakote Finish for My 80% Lower, https://www.ar-15lowerreceivers.com/ar-15-80-lower-jig/”, https://www.ar-15lowerreceivers.com/blog/5-biggest-mistakes-when-finishing-your-80-lower/, Why Your Next AR 15 Build Needs an 18″ Barrel, How to Legally Build a Short Barreled Rifle, Installing The Dolos Quick Detach Barrel System, AR 15 Accessories: The Free Floating Rail. Change ). An older 80% lower did not have this issue. ... Login / Register. I want Fusion 360 to see the 80% lower as the final product and I want to run a milling solution for just the fire control pocket. The most critical part of doing an 80% lower are the fire control pin locations. If you want a quality outcome, even an inexpensive 100% lower will be better than an 80% lower that you finish yourself.
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