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!
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!
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