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1/21/2014 10:14:25 AM EDT
I am trying to finish building my 10.5 build and i came up with a problem. The Upper goes as follows

  • Mega upper reciever
    Daniel defense 10.3 inch barrel
    troy alpha 13inch black hand guard
    and a Noveske kx3 pig


The problem that I am facing is the pig and handgaurd are a very tight fit and i need to attach a piece of 1913 rail to the hand guard to mount a AFG. The pig is completing inside the first 3 inches of the rail and there is no clearance to put the backer on for the 1913 rail. Does anyone have any ideas on how to mount some rail to the 6 o clock position?
1/21/2014 10:26:27 AM EDT
[#1]
Take it apart and put the backer in while its off the rifle. Then reinstall everything.
1/21/2014 11:49:37 AM EDT
[#2]
You will need to mount the rail section behind the KX3. If you have enough of the KX3 sticking out the end of the rail, use a strap wrench to remove the KX3 and then install the rail section behind the KX3, then use strap wrench to reinstall KX3.
If your KX3 is flush at the end of the rail, it may not be possible.
1/21/2014 1:55:04 PM EDT
[#3]
I can't fit a section of rail between the KX3 and the gas block not enough room. The KX3 is actually sitting inside the rail a 1/4 inch.
1/21/2014 2:11:16 PM EDT
[#4]
I had to file down my gas block to get the backer to clear.


1/21/2014 2:16:11 PM EDT
[#5]
Exactly why after several builds I quit using Troy. Started using Diamondhead and Midwest "skinny" hand guards with far greater luck.
1/21/2014 3:00:10 PM EDT
[#6]
Just found this in the archives.
http://www.ar15.com/forums/t_3_122/620242_what_rail_does_the_KX3_fit_under.html
In the last post on page 1 of the above thread, cshelk2 explains how to do it.
1/21/2014 3:29:36 PM EDT
[#7]
I may just hold off until the KX5 is released
Or i may have to get a set screw type gas block to get my clearances.  
Thanks for all the help!
1/21/2014 3:31:07 PM EDT
[#8]
I may just hold off until the KX5 is released
Or i may have to get a set screw type gas block to get my clearances.  
Thanks for all the help!
1/21/2014 6:01:44 PM EDT
[#9]
Quote History
Quoted:
I may just hold off until the KX5 is released
Or i may have to get a set screw type gas block to get my clearances.  
Thanks for all the help!
View Quote


I am waiitng for the KX5 also, Cant wait.
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