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Anyone have experience with Rainier Arms ultramatch billet uppers/lowers individually or the set: https://www.rainierarms.com/rainier-arms-ultramatch-billet-upper-ambi-lower-combo-set-mod-3 ? I'm thinking about grabbing the set to start a 6.8 build for hunting deer/pigs/coyotes and plinking. I'll form 1 it (can't have too many SBR's) but I'm between a 12.5" and 16" barrel.

Basic Parts List:
Rainier Arms Ultramatch Billet Receivers
BHW 12.5" or 16" barrel (pencil/LW)
Larue APEG (in my parts bin)
Dead Air flash hider (Sandman!!)

[I've been quite active on M4C and arfcom for a few years, and finally decided to take the plunge to 6.8.]
 

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I have build two 556's using their matched upper and lower sets. I no longer have them but, they worked beautifully and I never had an issue with the builds.
 

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If I were going high end billet receiver, I would go 2A Armament Balios Lite receiver set. Also check out AR15 Performance or Bison Armory for 6.8 barrels.


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