Description
Details
If you are building an AR15 you have come to the right place, and what better way to start than with the AR-15 lower. In deciding to go the DIY route, there are a few things you should know before starting the process. Basically, the AR-15 has two major components: the lower receiver and the upper receiver.
A complete lower receiver is composed of three major parts:
1. Lower parts kit - It is made up of necessary pieces to assemble trigger, trigger guard, magazine, bolt catch, hammer, and a magazine catch.
2. Stripped lower receiver - this part is basically a hunk of metal with holes and openings. It does not have any moving parts.
3. Stock - They all differ in designs - collapsible, fixed or featureless.
For 80% AR15 Lower receiver the FFL (Federal Firearm License) transfer fee is unnecessary. As a matter of fact, the only part that the government has regulated is the stripped lower receiver. This, therefore, implies that background checks and laws apply to stripped lower receivers as they apply to complete pistols, rifles, and so on and so forth. Once you mill the 80% lower receiver, it is possible to purchase all other parts without hassles and have them delivered right to your doorstep.
The 80% AR 15 Lower Receiver is the base of any AR-15. The reason why an FFL is unnecessary is that by design, the 80% lower receiver demands that the builder mills out the firearm control group area. This converts the 80% lower into a full complete AR-15 lower receiver. This is done using a milling jig, such as the Universal Milling Jig from M1 Machining and other basic tools such as the drill press, drill, standard hand-drill or a router along with a set of drill bits. The process is quite straightforward and the kits are available with video tutorials and paper manuals.
Some features of 80% AR 15 Lower Receiver are:
- MIL-SPEC Type III hard coat anodized in Black or Raw;
- 7075-T6 Heat Treated Aerospace 7075 Billet Aluminum;
- Completed weight: 10 ounces;
- Integral winter trigger-guard for added strength;
- Flared magwell to improve mag changes;
- NO FFL is required for purchase, item can be shipped directly to your home;
- As determined by the firearms technology branch of the ATF, this lower receiver is not classified as a “firearm” as defined by the GCA of 1968.
- The M1-AR15 may not be compatible with all other Manufacturers Jigs.
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Again, assembling the lower receiver can be challenging and frustrating so it is recommended to get guides from a reliable source/forums. No special tools should be required to complete assembling the AR 15 80% lower receiver.
Reviews
Customer Reviews
- really nice lower great service Review by John
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This is the nicest lower that I have used. Fit and finish are perfect. Mates up to my mil spec upper with absolutely no play whatsoever. I probably finished 30 lowers and this was by far the nicest one I have used. Highly recommended. You can't go wrong with this one. (Posted on 7/1/2021)Customer Service Price Value Quality - Awesome fit and finish. One of the best looking billet 80s available Review by GDS
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Awesome fit and finish. One of the best looking billet 80s available (Posted on 12/23/2020)Value Quality Customer Service Price - NO REGRETS!!! Review by Adam
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Was not sure if I should go to a bigger "better" company but I took the risk and with risk came great reward customer service responds within minutes of email contact honest with me and FAST shipping in the middle of covid AND Christmas I could not recommend this company and this product enough the quality and craftsmanship is unrivaled will be ordering much more in the future!!! THANKS M1!!! (Posted on 12/21/2020)Price Value Quality Customer Service - Great Quality with Unique Style Review by Anthony
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Made a couple dozen 80% ARs. These are some of the best I've seen, especially for the price. Appreciate that these are made from 7075 Aluminum. M1 has added their own style with trigger guard cut outs and lightening in areas. Would lover to see M1 make a matching billet upper. Not really a complaint but the octagon shape of the of the buffer housing makes it a little difficult to find an upper to match. (Posted on 12/18/2020)Customer Service Price Value Quality - Nice Parts Review by Subtech
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All good quality stuff including the jig! Purchased one and than a couple of more. No sense having the jig with nothing to put into it. Hope M1 continues the quality and starts making Glock and 1911 80 percenters! (Posted on 12/28/2016)Customer Service Price Value Quality - Best I've seen Review by Rob
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I work at a machine shop mostly making airplane parts with a bunch of other gun nuts and with the bosses blessing we get to play after hours. We have made lowers with forged and billet receivers from other companies.Customer Service Price Value Quality
M1's lowers are the best quality I have seen with thicker webbing in critical areas and very good tolerances.
I understand from prompt and personal email exchanges (no canned responses, real people) that they are very busy and it might take a little longer to get product out to us.
They are well worth the wait and I also prefer dealing directly with another machine shop. (Posted on 8/26/2016) - Fantastic! Review by Melvin
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This is a top of the line Billet at a forged price! Fantastic fit finish and design with all the details you would expect from a top of the line billet but yet at a forged price. This thing makes for an amazing build. (Posted on 6/21/2016)Price Value Quality Customer Service - 80% AR15 Lower Review by Big Rich
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Had a bunch of parts laying around from previous builds. Had enough to build a new gun just needed the lower. I have never done a 80% build before. I bought the ar15 lower and the jig. Shipping took a few weeks but James kept good communication. Once I received the items they both seemed to be good quality. Milling was pretty straight forward, had a couple questions and got quick responses. Overall I'm very pleased and confident to do another build with m1's product. (Posted on 6/14/2016)Price Value Quality Customer Service - Just Love It!!! Review by MRNUTS
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We have built several 80% lowers in the past but this billet lower is simply the best we have used. It is very well made and the 7075 is great to work with. It finishes out to make a real 1st class receiver. We could not be happier. Great product and the price makes it easy to give this our highest recommendation. (Posted on 10/13/2015)Customer Service Price Value Quality - 80% AR15 Lower Receiver Review by RIch
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Excellent quality and made in AMERICA need I say more. (Posted on 10/3/2015)Price Value Quality Customer Service - Excellent Product Review by ez$chuck
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Purchased one of these units and was very pleased with quality.Price Value Quality Customer Service
Once completed, it mated to the upper perfectly with no gap or wobble.
Will buy another soon!!! (Posted on 9/2/2015)
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