Colt AR-15 magazine 20 rounds

[Bizio]

Found this interesting link
http://magfaq.tripod.com/mags1.htm

[imarangemaster]

Some of the mags have this logo on one side, what it stands for ?
Thank you.

https://www.milsurps.com/images/impo...dsc01857-1.jpg

Universal Industries, a contractor. First for Colt, then on their own marking on the base plate

---------- Post added at 04:12 PM ---------- Previous post was at 04:08 PM ----------

I have one of those mags which completely lost the original finish.
Do you know how is possible to restore the original dark gray finish over the mag body ?
I tryed with Birchwood for Alloy but no luck.
Thank you.

I was a dry coating, a dry lube spray that was tough as nails. I talked with the inventor when working with him on R&D field tests of a dry lube and cleaner he eventually sold to Hornady, now marketed as "One Shot" Back then (mid 1980s) he gave me a spray can of the grey stuff and I refinished a bunch of mags for our SWAT team, and my own AR15.

[Bizio]

Maybe this can work
Lyman Super Moly Spray Lube 13oz Aerosol
or maybe Molykote D-321R as well.

[imarangemaster]

Hmmmm... Thinking back, I picked up a couple more cans in the early 1990s at a gunshow. It was so tough, I used it to paint black SGW lowers to match Colt uppers on builds I did. It was in a military issue can (white label, IIRC) with a FSN on it. Maybe a search of FSN for dry film lube might yield it. I always check surplus stores, but haven't seen any in 20 years or so.

[Bizio]

Thank you, I live in Italy so will check what I can find here.