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 or any other billet uppers out there.
- 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