First I strip off any other lube with non-chlorinated brake parts cleaner then wipe down.
I break down the bolt/carrier but leave in the extractor and along with the charging handle, get them slick with the stuff then bake at 200 on aluminum foil until they're nice and toasty- maybe 30 minutes
I think miltech says no more than 185, but my oven won't go lower than 200 and I just watch to make sure it's not vaporizing.
Then I use a pair of gloves, re-assemble with any excess miltech still on and then manually cycle about a dozen times.
The heat and excess miltech spreads to the rest of the upper receiver nicely.
I don't bother with the barrel- I kind of doubt the stuff sticks to chrome or stays on while putting bullets down it so I just use clp for corrosion protection instead.
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