Rainier Arms Gen II UltraMatch Billet Receiver Sets are now released on Revolvr. These are just an update to the Gen I UltraMatch Receivers to match their .308 UltraMatch Receiver Sets.


Specifications:


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 bolt release with extended latch for smoother deployment. The precision machining on our our billets are well known in the industry and we are excited to introduce our combo sets for your next rifle build.


Features:


• Ambidextrous Extended Bolt Release
• M4 Feed Ramps
• 7075 Billet Aluminum
• Flared Magwell
• Integrated Trigger Guard
• Tensioning Screw for proper Upper/Lower Fit