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9/22/2017 12:11:25 AM
Posted: 8/9/2005 8:28:52 PM EDT
Hello

At first I have to apologize my english because I live Finland so I don't speak or write english very well.

I would like to manufacture Picatinny rail extension for my AR15 but I don't have any specifications.

So could somebody give me address or something where I can find it?

Thanks
Link Posted: 8/10/2005 1:57:27 AM EDT
MIL-STD-1913 (AR) February 3rd 1995:
www.charm.net/~kmarsh/milstd/mil-std-1913.pdf
Link Posted: 8/10/2005 6:54:54 AM EDT
Could you tell me one thing.

In page 8 figure : Accessory mounting rail profile.

On the right is dimension " 2x .367 min. What this mean?
Link Posted: 8/10/2005 2:42:31 PM EDT
Disregard the "2x". Total height of rail, including the straight lower section should be at least .367", in order to provide enough room for the clamp of the mount to "grab" under the rail profile.
Link Posted: 8/10/2005 5:58:46 PM EDT
But you can also purchase base rails in either aluminum or steel from Brownells and cut/drill to suit.
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