Thank you for the "up-date"/additional information on the "wear-strip" in the upper-receiver of the new M107A1.
Could you expand on that information (?).....what I mean by that is that the question is not concerning a recently manufactured M107A1........but how long with the wear-strip last (?).........and what will be the indications of the wear-strip "wearing-out" (?)....or "wearing-out-of-tollerance" and how will/can we check this in the future (?).......or will the new upper-receiver be an item that needs to be replaced when the barrel is replaced (?). I know that Barrett has to have done some R&D into this area.
This will help some readers decide which way they want to go in a future purchase on an M107A1 vs. M82A1 vs. M107 ("I for one am trying to decide, with more information").
With the high expense for shipping back-and-forth to Barrett (and time gun is away in shop), if we knew more information about "how to check this wear-strip".......and possible when it might/will wear out, may preclude shipping of a weapon back to Barrett's shop only to be told that the weapon's "wear-strip"/"upper-receiver-assembly" are still good.
I don't need to know the "secret-coatings" on the wear-strip"..........just how to be able to check wear/wearing-out of this part (which I am now told is the entire upper-receiver). Possible number of rounds fired (?).......possible when the coating wears-off the wear-strip (?)....possible when the weapon's accuracy degrades to what point (?).....possibly at "Barrel-Change (?).........possibly ____________(?).
Any additional information into this area will help not only me, but others now and in the future to check this part/upper-receiver wear-strip.
Regards, RichardS in MI.
US Army, RetiredBlanksguy2001@chartermi.net