upper and lower mismatch?

[Barrett]

Does this not look right to anybody else?

[guruofhotrod]

On 1/13/2017 at 3:59 PM, jtallen83 said:

By looking at my Matrix receiver set you would say it is an Armalite but they do not interchange with my AR-10 in any way. The only way to be POSITIVE of a fit is to buy a set from the same manufacturer.

I was concerned that the third party Armalite style upper may not correctly fit your upper. Matrix, Mega Arms, Genesis, Knights Armament and likely a few others that I missed use the Armalite type cut on the upper/lower mating surface but there is some incompatibility between the different manufacturers - hopefully others here familiar with the models I mentioned can help you find a better match to your lower.

[survivalshop]

 We have seen the newer AR10 Factory rifle's that don't fit well lately . If you have two different manufacturers Receivers , I don't think you can expect a cosmetic look to them . Now how well they mate up to function together , well thats another matter & one I would be more concerned with .