The TWINS!

[alias]

Grant,
Did you have any probs of compatability with the Vltor Mur upper and the Larue rail?
Also, what about the Mur not fitting a standard upper receiver block?
Thanks in advance!

[militarymoron]

not grant, but figured i could answer. the anti-rotation plate/key (as grant mentioned above) needs fitting to the MUR receiver.
when i installed a larue rail on a MUR, i cut off the right side of the anti-rotation key as it's the left side that keeps the rail from loosening.
if you use a DPMS 'claw' receiver block, it fits inside the receiver, so the outside profile doesn't matter.

[alias]

MM,
Thanks.
On a recent one I did, not only did the locking plate need milling modification,
but I also needed to reduce the head diameter of the twin locking screws.
End result was just fine.

[C4IGrant]

MM,
Thanks.
On a recent one I did, not only did the locking plate need milling modification,
but I also needed to reduce the head diameter of the twin locking screws.
End result was just fine.

MM is correct. I use the DPMS receiver block with the MUR (works just fine). For installation of the LT locking keys, I hand grind each one to fit and then shoot it with KG coating.



C4

[alias]

Thanks!!!!!
If these MUR uppers become common, I'll get a DPMS block.