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7/5/2011 9:15:40 AM EDT
I have a DMPS LR-308 with a AP4 Barrel.  I am looking for a DPMS rifle length quad rail with the low style rails...and i am unable to find one.   Midway has the high rail style, just wondering where one can be found...thanks
7/5/2011 9:25:56 AM EDT
[#1]
DPMS has two different uppers as far as the height of the rail as measured from center of bore. I found this out the hard way and bought a Troy MRX fore end only to find that it was about an 1/8" higher than the receiver. I contacted Troy and they advised me that the upper I have is a newer model and they changed the specs. I exchanged the MRX for a correctly sized TRX as I liked not having all the extra rails that add weight and I was not going to use anyways. Contact Troy and they should be able to get you what you need. I run Troy products on several guns that go to work everyday and while expensive they have always been money well spent, excellent fit and finish and they have performed flawlessly. Good luck, let us know what you end up gettign and why.
7/6/2011 8:27:14 AM EDT
[#2]
Troy now has the MRF 308 available for DPMSs new A3 rail height.  Otherwise, DPMS carries their own quad rails which will also fit.  Troy's low pro .750 gas block set screws may not line up correctly with the dimples in the DPMS barrel.
7/6/2011 10:23:20 AM EDT
[#3]
PRI and APEX also make the both DPMS receiver height rails (old & new) for their free float tubes
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