How To And Tips For Milling An AR Lower From An 80%




What do you think about this video?

usmcdoc14: I am replying so I can delete your post. TAS Firearms, If you wish to get exposure off my work then you can send me some of your products to build and evaluate. There is no free lunch, only my free instructional videos

Christians.Vs.illumination: USMCDOC14 your video has helped me tons! I would love to see you build a Radius 1911 build.

Chris Turnblom: I disagree with your definition of assault weapon. The term is completely ambiguous. If I assault you with a spoon it can be considered an assault weapon. Just because a gun shoots automatically does not mean you can only use it to assault people. Don't give the idiots any ammo.

FuYing Bro: I love your PSA. Although I did an 80% on a $130 drill press and $40 x/y vice. Of course it didn't come out as good as yours. I was just saying that you can do it with less that what is shown.

Smitty: Lol oh look its all shinny and #@%& ... DONT TOUCH IT leave it alone You had me laughing 

Zakk Young: taking a weekend with some bros and making some AR-15s sounds awesome. good video. Might ahve to see if my grandpa wants to guide me with this 

Kennard Lang: Thanks Doc. Great grief-saving tips. Getting ready to tackle two -15's and a -10 with ambiguous instructions; a decrepit, somewhat square drill press; suspect jigs; patience; calipers; and your gracious demo. Flew Spectre over Mog and other places in the 90's and felt honored to let you guys sleep peacefully. Semper Fi. 

rdsii64: finally knocked out mine last night. I was up until 3am. its not as hard as most people think. YOU DO HAVE TO PAY ATTENTION TO WHAT YOU ARE DOING THOUGH!! I under cut my fire control pocket by 2 or 3 thousandths because I knew being a novice it was going to come out looking rough at best. One final skim pass this morning and this baby is ready for a parts kit.

pinkeye00: Send me a check bitch.

megadeth22885: a drill press with a 2-axis milling vise for a drill press is realistically all you need to do this, $100 for a cheap drill press and another $60 for the vise.. plus the proper endmill bit

ChickenPimp J: Where did you get your spec papers? I ordered two of the alum lower 80's and got nothing as far as drilling depths. I didnt get any specs nor, even, a website to go to for looking at any specs. If I ever order any more Ill be going through a different distributor (unless the guy starts adding some info on machining and building these things). NM, Im checking your website, now...maybe Ill find what I need. Semper Fi!

MrBlurry2011: Are the AR Jigs universal? meaning can i use one jig on 2 different 80% lowers? Or does each lower require its own unique Jig?

rdsii64: Just installed the absolute DRO from igaging on my z axis. It was a pretty strait forward process. I'm not to concerned about DRO for the other two axis' yet since the lower is mounted up in a jig. If you haven't yet. you gotta get the Tormach Tooling system. No more hitting your drawbar with a hammer to get the collet out. The starter set up for a manual mill with an R8 spindle is just under $190.00 plus shipping.

Emil Pienczykowski: Thank you for your patriotic spirit and teaching. Hope to see more people like you.

david smith: thanks for the video I used my buddys mill after watching this video it took me 4 hours to mill it but it turned out great BTW first time I ever used a mill

Heriberto Venegas: On your blueprints is there any GD&T involved. I would like to calculate some steel-safe nominals and keep it within tolerance. 

gorgeous george: yes stop calling the ar 15 an assault weapon,,,just because many of your heros like diane feinstein call it that,,,its not,,it is a semi auto rifle.dont work against the gun owners movement,....

AZ DieselTech: No gloves! Everyone wants to wear gloves. Glad that you're not, and you made a point of stating the obvious for the beginners. You snag a finger you can pull it away. You snag a glove and it pulls you in, you have ground beef. Great video. Learned some things, and knowledge is the most important thing we can arm ourselves with. 

Haywood Jablomie: Is there such a thing as an 80% .50 cal kit??

William Hall: Great video! Thank you

rdsii64: Well I pulled the trigger last night at work. During my break, I ordered a solid column Sieg X2 and a belt drive conversion. I'll order tolling later this week. looking forward to going back over this video after my mill has been delivered. Lucky for me the 80's I have came with accurate drawings. Now its lots of studying and messing around with scrap aluminum to learn my mill. The fist hog I kill with my new rifle I will dedicate to freedom and the second amendment.

michael neyman: mute, take it easy pencil neck

matt lemon: bless you for teaching the populace.... knowledge should be open and free for the people. Governments will try. But people like you are keeping the hope alive.

nunya biness: For those who have a better mill, use a 7/16 cutter. The radii in the FCG pocket are supposed to be .218. I run a 4 flute 7/16 with a 1.3" cut depth at 1,000 RPM for most of the process (I do the main pocket in two steps), then kick it up to 2,500 for final pass, climb milling ~.010" material. Personally, I like to cut 7075 al dry; easier chip clearing, and won't hurt cutters at all if your speed and feeds are right. Having said all this, if you're using a bench top, as he mentioned, they simply won't hold the tolerances, and the lower pocket that is supposed to be .438" (7/16) at the selector lever will grow on you. I spent a long time with the little Seig/HFT mill; it'll get the job done, but you have to take light cuts and constantly check your dimensions. Tighting the gibs will help with chatter, but makes those little cranks very tight, which *will* cause carpel tunnel over time.

Sean Talley: You sir are my freaking hero I really cant express it enough. They can take my guns from my cold dead hands. 

thomas lowe: Hey i got a question for you, im about to start on my first Ar build, im using the jig from 80% the easy jig, and the only things i need are the drill stop collar and the router, (and of course the complete upper receiver) and i was wondering what size and type of router bit would you suggest to use on finishing up my lower, i have the general idea of how to do it, just need some specifics now on the router bit to use

Anthony Seneck: I Agree with everything you have said in this video

Michael Costa: I am with you, I am not a criminal. 

Jordan Baumgardner: Thank you, for helping truly protect this land and it people.

Haywood Jablomie: What a GREAT guy!! A real American!

Y Pop: I had to unwrap a man's hand from a drill press because he was wearing gloves! I never ware gloves when machining! 

Kyle Hobson: Hi im 14 and really want an ar 15 im one of those "zombie prepper" types and want one for my survival kit and also for hunting as I know that the ar 15 is a very reliable and comfortable gun for me I want to know if you have any idea if it would be legal for me to manufacture and own one please reply it will be very helpful btw I will be 15 before I can get ough money to buy the parts

Gabe Hartman: DOC are you a green shoe or brown shoe, my brother is a retired Navy surgeon, who was assigned to a Marine unit. Oh and thank you for this info, I love it.

rdsii64: Been watching your videos. Love your work. I have two DPMS pattern .308 80 pecent lowers in my safe. I am about to pull the trigger on a solid collum HiTorque mini mill. Once I save for a three axis DRO and the tooling, I'm all in. Hell I might even try to make a video of my progess. If I take it that far I will be sure to credit you as a source. Semper Fi Brother

reado33: can someone please tell me how many times this guy says OK is it more or less than 761 times?????

MasterK9Trainer: I appreciate you putting yourself "out there" and it's one thing to read books or plans, but it's invaluable to see someone actually do the work to demonstrate what it takes, what is required and how hard or easy it is to do a project. I have two brothers and we were born in Quantico, Camp Lejune and Cherry Point, so I support marines. 

Stresscat1: I did not see the VZ-58 build on your sight. Could you do a VZ-58 build using the Hellbox Armory 80% receiver?

xmodfreak2011: That calipers advice is golden. Was using some random manual calipers (like ruler status, not even a dial), totally read it wrong like an idiot, and punched thru the floor of my lower. Epic. Fail.

kpw528: +usmcdoc14 Just curious, I saw you say somewhere in a comment that you were from Virginia. What part of VA do you live in? I also live in VA and it'd be awesome if you were in driving distance, so maybe I could come over and you could teach me about milling an 80% lower. I'm really interested in building my own AR, and the concept of 80% lowers is awesome to me because I'm a hands-on type guy and love building/working on things. Semper Fi and thank you for your service, and for the awesome informative videos!

Argelio Del llano: What's the law on this 

The Rodog: @ 16:51 love it

Johnny Maggiore: I didn't even know what a drill press was until I watched this video. I have watched this video several times before, I really want to start building my lower soon. I am very excited and this video will really help. The only part I was confused on was the drilling depth I need, and the bits I will need. That's all, thanks.

YungBossk: Quick question. I see your 80% doesnt have a trigger guard. But on the website you give billet80 all the 80% they have come with non removable trigger guard. Did yu buy lower from different website? Just need to know bcus I need 1 without trigger guard for the grip I am using

Steven Ford: Great skills, nice work, I'm a fan. O.k. Now that it it milled what about the finish? Do you prefer to powder coat or anodize and die? I'll keep watching your stuff. Love your abilities and your attitude.

Anthony Seneck: +usmcdoc14 Have been wondering what state do you live in? If you don't want to answer that I understand as well.

UncleDeluxe: Nice video, thanks! On a side note- damn, there are some douchey blowhards on your comments page for your free video, that you spent the time making, which they have absolutely no obligation to watch if they don't want to.

Cameron Henrichs: Could you mill mine for me ? 

Phu Ly: Thx for the guide, very much appreciated for taking your time in making this video.

Sir David Haddon: ooh rah, Second Amendment, and Free Speech ! Thank You for the schooling.

Rating:
How to and tips for milling an AR lower from an 80% 4.8 out of 5

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How to and tips for milling an AR lower from an 80%