ok dudes

its time

a while back i made a post outlining my new ar project

today im gonna talk about the work on the receiver

so this is an 80 percent lower in the white made by cerro forge out of 7075 t6 aluminum

to mill it i bought the easy jig 2 from 80 percent and

i also bought their tool set for it and the hand drill stabilizers

i used a basic hand drill from harbor freight

and the router was a brand new dewalt dwp611

---

the first thing i did was put on my sweet engravings

i printed labels and stick them on

then painted over with nail polish

the nail polish prevents electrical contact

then i carve out the design

honestly the label made things harder and eventually i freehanded it

then you take a phone charger and cut the end off

split the wires and label positive and negative

attach little paper clip ends and cover with tape

then attach the positive end to the receiver and the negative end to a cotton swab dipped in salty vinegar

the electricity eats away at whatever is exposed

its slow but steady

clean lines are crucial to a good final product

my end results looked ok

then we mill

i dont have a vice so i used a couple loaded 5.56 ammo cans lol

it worked well

just follow the instructions on the site

they have videos too

a couple things ill add

first

i didnt go full hashmarks

or even half hashmarks

i did like third or quarter hashmarks

this gun will last forever

enjoy the process and take your time

feeling the smooth cutting without any chattering was very rewarding

one other tip

there comes a point where you need to put a screw back into this hole

this screw is supposed to go in there

it was filled with shavings tho so put some painters tape over the hole to save yourself some trouble cleaning

overall it went very well

my block slipped on the cans at one point and i nicked the sides

and altho i was very methodical there was a little roughness on the sides

i sanded a little afterwards with paper and dremel

i also had to do minor fitting to the rear hole where the upper is supposed to drop into

i think the front pin hole was slightly too forward

anyway thats the single hardest part requiring the most work

everything after this is a breeze lol

ive decided to completely forgo any anodizing or dye

im going to paint it so meh to coloring it black

as for strength

the 7075 t6 aluminum im using is stronger than the original 6061

meanwhile nowadays they make these things out of polymer

so im thinking its plenty strong as is and i can save time by skipping it

to assemble the parts i followed the series by imminent threat solutions

the only special tool i used was the castle nut wrench

had zero problems even tho my baby was attacking me throughout lol

well thats enough for today

ill make posts about other parts later

pew pew