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Rainier Arms UltraMatch .308/7.62 Mod 3 Billet Ambi Lower Receiver

AR-15 Stripped Lower Receiver

Out of stock

Rainier Arms UltraMatch .308/7.62 Mod 3 Billet Ambi Lower Receiver


Our billet sets 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. We have designed our lowers with an ambidextrous mag release and bolt release with extended latch for smoother deployment. The precision machining on our billets lowers will line up perfectly to our Rainier Arms UltraMatch Billet Upper Receiver and may not fit most upper receivers


  • Ambidextrous Extended Bolt Release
  • Ambidextrous Magazine Release
  • 7075 Billet Aluminum
  • Flared Magwell
  • Integrated Trigger Guard
  • Tensioning Screw for proper Upper/Lower Fit
  • Compatible with 45° safety selector levers
  • Weight 12 oz

FFL Required Before Shipping.

Please have your dealer email their license to [email protected] or they can also fax it in. Please give us a few days to process the information.

More Information
Product Type AR-15 Stripped Lower Receiver
Manufacturer Rainier Arms, LLC

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