Posted on 03/12/2019 10:41:26 AM PDT by w1n1
Many AR fans love building their own platform and one of the big thing to get if you like drilling the lower yourself, is getting an 80% lower receiver.
80% AR-15 Lower Receivers is a piece that have not yet reached a stage of manufacture to be considered a firearm. The term 80% is an industry slang and not endorsed/used by the ATF.
Did you Know?
When you get your 80% lower, there isnt any serial number on it. So once youve finish drilling your lower, do you need to put a serial number? No, you dont have to but doing so helps in case you get your lower stolen. In short you dont need to have an FFL for having the 80% lower.
As long as you meet these criteria that the ATF looks at:
-Can legally own a firearm in your state/county/city (not a felon, etc
)
-Manufacturing only for personal use
-Configuration is legal in your state/county/city (National Firearms Act rules apply for short barreled rifles, automatics, etc
)
Comes in Silver?
Most 80% lowers are sold as raw aluminum, which is why the color. If you get the lower with anodized coating and after completing it. All the cuts will expose the aluminum underneath. Tis, why most savy AR builders just go with the raw aluminum. Once youre done machining it, you can complete it with anodized or use a coating like Alumahyde or spray paint it. Read the rest of 80% lower.
Is everyone at this blog a 14 year old illiterate?
Thanks for the pointers. This sounds like an interesting hobby.
I used a drill pres, not a drill bit for milling the first one. You drill out the bulk of the material using a 1/2 inch drill bit, then do the milling work with an end mill in the drill chuck.
My Bridgeport is not a CNC. Milling out a lower all manually is a lot of work, and very time consuming. So much easier to just buy the 80.
Currently on #14. Done handguns, AR15s and other novelties. Current project an Uzi pistol.
Every time some jerk makes noise about passing laws infringing on their ownership/manufacture, I build another one.
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