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7/6/2010 11:04:51 AM EDT
Does anyone know if LMT HPT\MP test their standard bolts?  It doesn't state it on their web-page.
7/6/2010 11:16:46 AM EDT
[#1]
I know mine is marked "MP". Not sure about "HP" though but I believe they are.
7/6/2010 11:37:23 AM EDT
[#2]
mine is marked MP as well And I'm positive they high pressure test them
7/6/2010 12:22:35 PM EDT
[#3]
I'm pretty sure I read it somewhere that they HPT every bolt.   I sent them a email since I posted here waiting for response.
7/6/2010 4:35:18 PM EDT
[#4]
Yes, LMT HPT then MPI all their bolts, each and everyone, and don't be surprised when you get them dirty with some powder and brass marks.

It had been discussed here on many threads before, team members could look it up in the thread archives.

I've got three LMT BCG the older one I got about 5 years ago had only a "F" letter production code marking on the bolt, the newer one I got a couple of years ago have "MP" markings.

My third LMT BCG is a really rare one, the carrier is the standard M16 auto type park finish outside, but the bolt assembly had been hard chromed, no markings, it was a production upgrade mistake by the factory and they only made one batch back in around mid 2005.


7/7/2010 8:11:44 AM EDT
[#5]
Thanks for confirming.  I recieved a email back from them stating the same.   The guy that responded stated he used to do all the HPT\MPI testing & that they do the barrels too.
7/7/2010 8:15:30 AM EDT
[#6]
to confirm what Alpha-Romeo said, all of my LMT bolts have come with brass and powder residue on them. same with the two LMT uppers i own. my older bolts simply had a "date code", newer ones had a date code and MP markings.
7/8/2010 4:31:03 AM EDT
[#7]
All barrels and bolts are HPT\MPI at LMT
7/8/2010 7:38:53 AM EDT
[#8]
LMT states in their 2010 catalog that ALL bolts and barrels are HP/MP tested.  Barrels are also cryo stress relieved.
7/14/2010 1:27:21 PM EDT
[#9]
Received the bolts & both are stamped MP.  Thanks for all the help.
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