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10/29/2005 6:19:30 AM EDT
Has anyone used an "XM 21" SEI scope mount on an M1A? SEI has these on sale on their discontinued/sale page. I know you get what you pay for, but I still have a hard time justifying spending that much for the newer SEI or Sadlak scope mount. I'm not able to get a close up of the sale mounts to actually see what the difference is in the new/old. Thanks Greg
10/29/2005 7:06:27 AM EDT
[#1]
I "believe" this is their old style mount. If so, I would buy w/o fear if it says SEI on it. I would buy one but just got a Sadlak.
10/29/2005 7:12:49 AM EDT
[#2]

Quoted:
I "believe" this is their old style mount. If so, I would buy w/o fear if it says SEI on it. I would buy one but just got a Sadlak.


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It does say "Smith Ent" on it and it was made from the same material as their current NSN items (i.e. 4140 CM).  It's just marked "XM-21".  I saw them at the factory a couple of months ago during the first 2ID M14SE build.  Certainly a collectable bit of kit, in addition to being an excellent MIL STD 1913 (Picatinny) mount in it's own right. Can't go wrong with this unit.
11/2/2005 5:24:58 PM EDT
[#3]
Anyone have a picture of this mount? Thanks. Greg
11/2/2005 5:30:34 PM EDT
[#4]
This is the old Weaver style M14 scope mount from Smith Enterprise.




11/3/2005 3:11:07 AM EDT
[#5]
any ideas if these will properly fit on the new SA production receivers? I've been told to go with SEI for mounts because they do take into account the dimensional changes present in the commerical receivers (whereas ARMS does not).
11/3/2005 5:55:45 AM EDT
[#6]

Quoted:
any ideas if these will properly fit on the new SA production receivers? I've been told to go with SEI for mounts because they do take into account the dimensional changes present in the commerical receivers (whereas ARMS does not).


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Dimensionally, the SEI XM-21 Picatinny (MIL STD 1913) scope mount is the same as the newer M14 NSN mounts (p/n 2006 & p/n 2008).  That's perhaps the best way to answer your question. However, if you still have any questions call the factory at 480 964-1818.  
11/4/2005 2:06:03 PM EDT
[#7]
Well, I ordered the mount today. Ordered the XM21 Picatinny that Mach6 mentioned. By the way, they've got 15 left. Going to mount a SS 16x42  to my Super Match and see what it'll really do. Chances are, I'll probably work up an accuracy handload, then go back to the open sites. Bad thing is, I can't shoot open sites anymore worth a hoot! Greg
11/5/2005 5:54:27 AM EDT
[#8]
Good move.....I believe they're well under the 15 units, IIRC.  
11/15/2005 4:15:14 PM EDT
[#9]
Geez....how long does it usually take to get an order from SEI??? Still haven't gotten it yet! They're killin me!!! Greg
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