Quoted:
Teflon coating the receiver and bolt,does it eliminate the need for lubrication,what was the coating on the original AR-10 rifle?

"Made largely of non-corrodible aluminum and titaniym alloys,with a minimum of steel parts,
the soft gray-colored AR-10s will not rust.In the rain,when we fired them,they received a
liberal baptism.Any other guns would have been striped to the last nut and bolt to be cleaned
after firing,but the aluminum and staineless surfaces of the AR-10s gradually warmed to room
temperature,the water evapurated,and they were dry."

"The A.I.(Artillerie Inrichtingen) started in august 1957 to prepare the production of the rifle
and all sorts of difficulties arose,drawings had to be converted from inch to metric,tooling had
to be designed and made,subcontracters had to be found and educated to work with new materials like
the aluminium 7075-T6 for the upper and lower receiver and epoxy for the butt stock and hand guard.
Not to forget they had to work with new techniques like hard anodising the aluminium parts and the
use of a dry lubricant film of M0S2 on diferent parts of the rifle."

Thank you.

Quoted:


i don't think teflon was around that early.  there was a dry film lube they used.  it was what was used on the magazines.  i think they did spray the inside of the uppers with a greyish film as well as you sometimes see overspray on the uppers.

Quoted:

DuPont, which founded Kinetic Chemicals in partnership with General Motors, was producing over two million pounds (900 tons) of Teflon per year in Parkersburg, West Virginia, by 1948.

http://en.wikipedia.org/wiki/Polytetrafluoroethylene

Polytetrafluoroethylene (PTFE)

"History
PTFE was accidentally invented by Roy Plunkett of Kinetic Chemicals in New Jersey in 1938. While Plunkett was attempting to make a new CFC refrigerant, the tetrafluoroethylene gas in its pressure bottle stopped flowing before the bottle's weight had dropped to the point signaling "empty." Since Plunkett was measuring the amount of gas used by weighing the bottle, he became curious as to the source of the weight, and finally resorted to sawing the bottle apart. Inside, he found it coated with a waxy white material which was oddly slippery. Analysis of the material showed that it was polymerized perfluoroethylene, with the iron from the inside of the container having acted as a catalyst at high pressure. Kinetic Chemicals patented the new fluorinated plastic (analogous to known polyethylene) in 1941[2] and registered the Teflon trademark in 1945.

An early advanced use was in the Manhattan Project as a material to coat valves and seals in the pipes holding highly reactive uranium hexafluoride at the vast K-25 uranium enrichment plant at Oak Ridge, Tennessee.

DuPont, which founded Kinetic Chemicals in partnership with General Motors, was producing over two million pounds (900 tons) of Teflon per year in Parkersburg, West Virginia, by 1948.

In 1954, French engineer Marc Grégoire created the first pan coated with Teflon non-stick resin under the brand name of Tefal after his wife urged him to try the material he had been using on fishing tackle on her cooking pans. In the United States, Kansas City, Missouri resident Marion A. Trozzolo, who had been using the substance on scientific utensils, marketed the first US-made Teflon coated frying pan, "The Happy Pan," in 1961."

Quoted:
Thus the Fail Zero uppers & bolt carriers. I still plan on lubricating my bolt thank you. You know AR's are 'self-cleaning' right? Seriously though, I believe Fail Zero will coat your components for you for a price, which means you could have a Fail Zero AR10. OOf course, if you did this to an original we'd have to hunt you down and give you a hiding....

Quoted:
the use of a dry lubricant film of M0S2 on diferent parts of the rifle."

Thank you.

Quoted:
Anderson Machine uses this process on their AR 15's. My department and the one in the next county carry them and they run dry( no lube)
http://www.rf85.com/
http://www.atdmachineshop.com/rf85.htm