ARdentFan Posted April 8, 2015 Report Share Posted April 8, 2015 Hello! So I was looking on a popular online site for firearms and parts and came across a deal on a blemished upper and lower set from Matrix Aerospace. Turns out in a "happy birthday!" moment the matched upper and lower were mysteriously purchased and are now on the way to an FFL for me to pickup! None of my firearms stay virgin looking for long so a blemish isn't that big of a deal to me. :) Anyway, based on my reading of threads here and on other sites, I'd like to confirm the following information now that this is on the way: 1) This upper and lower set is based on the AR-10™ pattern (as opposed to DPMS, etc). My reading and the pics of the mating surface say this is true. 2) One can use a BCG and Barrel in this upper provided both parts are for the same pattern (e.g. DPMS style BCG and Barrel is OK, armalite BCG and DPMS barrel is NOT ok) 3) Floating handguards must say they are for the AR-10™ and include an AR-10™ barrel nut to work properly. I'm taking my time with this and want to enjoy the build (its not starting for at least another month due to external constraints), but at the same time I also believe in the "measure twice, cut once" philosophy. I'm 99% sure these 3 bits of information are correct, but I'm at the point now where I've read so much I am in a transient state between being confused and not confused. :) Thanks in advance! PS - can someone clarify the stiatuion with a barrel extension on this upper and now this might tie in to my choice of barrel? Quote Link to comment Share on other sites More sharing options...
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