Barrel for retro build? Lowers?

[HOOKED ON HISTORY]

NODAK did have 80% A1 lowers in stock last week.

[garrettbragg12]

If your upper is an earlier Colt XM Grey, clean your lower with acetone, warm slightly, then spray several light coats of Rustoleum grey auto primer. Dead on match, and if you let oit cure for a week in a warm house, then coat with CLP. it is pretty tough finish.

---------- Post added at 09:52 AM ---------- Previous post was at 09:47 AM ----------

https://www.milsurps.com/images/impo...8/XM1771-1.jpg

https://www.milsurps.com/images/impo...7/Pstart-1.jpg

https://www.milsurps.com/images/impo...ayprimer-1.jpg

I really appreciate the advice! You guys are too awesome here. I'll let y'all know when the parts come in!

---------- Post added at 12:45 PM ---------- Previous post was at 12:44 PM ----------

NODAK did have 80% A1 lowers in stock last week.

What all is involved in finishing an 80%?

[HOOKED ON HISTORY]

Check youtube 80% AR lower finishing. Looks pretty doable if you have access to a mill.

[garrettbragg12]

If your upper is an earlier Colt XM Grey, clean your lower with acetone, warm slightly, then spray several light coats of Rustoleum grey auto primer. Dead on match, and if you let oit cure for a week in a warm house, then coat with CLP. it is pretty tough finish.

---------- Post added at 09:52 AM ---------- Previous post was at 09:47 AM ----------

https://www.milsurps.com/images/impo...8/XM1771-1.jpg

https://www.milsurps.com/images/impo...7/Pstart-1.jpg

https://www.milsurps.com/images/impo...ayprimer-1.jpg

Well the upper stuff came in today. Nice condition no rust or chips. Finish wear on the edges, which I actually like the worn look. I know it's hard to tell, but is the later or earlier colt grey?
Attachment 67744

[imarangemaster]

Late Colt grey will be almost black, and will actually match a charcoal Anderson lower. Lighter colt grey is a tad darker than Rustoleum primer, and early "XM grey" (the color the prototypes, early 601, 602s, and early 603s-XM16E1s were) is just a tad lighter than Rustoleum grey. With the CH forge codes on uyours, it is mid-1970s, and would be either late Colt grey, or the mid range. Check it against a black lowe.

[HOOKED ON HISTORY]

Good source for small parts JSE surplus, CDNN,Numrich,APEX, Fulton Armory,Delton .

[garrettbragg12]

Late Colt grey will be almost black, and will actually match a charcoal Anderson lower. Lighter colt grey is a tad darker than Rustoleum primer, and early "XM grey" (the color the prototypes, early 601, 602s, and early 603s-XM16E1s were) is just a tad lighter than Rustoleum grey. With the CH forge codes on uyours, it is mid-1970s, and would be either late Colt grey, or the mid range. Check it against a black lowe.

I used my black RRA lower as a comparison and took it out in the day light. It looks to be the earlier gray?
Attachment 67789

[imarangemaster]

I used my black RRA lower as a comparison and took it out in the day light. It looks to be the earlier gray?
Attachment 67789

Use Rustoleum grey primer and it will be a good match.

[garrettbragg12]

So my temporary lowers from PSA just came in, and I'll be painting them this weekend. I bought the paint, but I'm curious as to how warm you need to get the receivers before painting?

[HOOKED ON HISTORY]

Like the new M-16.