Colt AR15 6920 - THR

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Old Today, 09:11 AM   #1
Join Date: July 9, 2014
Posts: 11
Colt AR15 6920

anybody know what kind of a mount I can use to mount a Nikon Prostaff 3x9 scope on this gun? I want a one piece. I bought the Nikon M223 mount but it will not go on my rail. Trying not to go with a two piece mount. Thanks
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Old Today, 09:18 AM   #2
Join Date: August 11, 2010
Location: Virginia
Posts: 3,886
What do you mean it did not go on your rail? The 6920 should have a standard 1913 Picatinny rail. The M223 mount should fit a standard 1913 Picatinny rail.

Is this a problem with the objective bell being too large?
"The worst of all conditions in which a belligerent can find himself is to be utterly defenseless"- Karl von Clausewitz
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Old Today, 12:08 PM   #3
Join Date: January 2, 2008
Posts: 1,927
If that mount won't fit your RAIL, either the mount or your rail is out of spec. Thats a petty common AR-15 mount that typically attaches to a 1913 rail without any issues whatsoever.
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Old Today, 12:18 PM   #4
Join Date: March 9, 2006
Location: Northwest Washington
Posts: 2,521
Sounds like someones not clamping their mount down tight enough....
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Old Today, 12:25 PM   #5
Join Date: September 17, 2007
Location: Eastern KS
Posts: 48,167

It certainly almost has to fit the Colt rail.
If the carry handle sight came off, the mount will go on.

Did you loosen all three clamp screws?

At that point it should just hook over the rail.
Make sure the screws are aligned with the corresponding cross-slots in the rail.
Then tighten the clamp screws.

Don't put all your eggs in one basket.
Or all your primers in a glass jar!

Last edited by rcmodel; Today at 12:32 PM.
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