Rainier Arms, UltraMatch Billet Upper Receiver, MOD 3, 5.56mm

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  • Regular price $329.99



Part #: RAIN-BUR-556 Brand: Rainier Arms


Our billet uppers are CNC machined from solid billet 7075-T6 aluminum which is 70% stronger than the commonly used 6061 aluminum and finished with milspec hardcoat anodize to a surface hardness of 60 Rockwell. The precision machining on our our billets are well known in the industry and we are excited to introduce our uppers for your next rifle build.

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