This AR9 80% lower receiver is machined from 6061-T6 billet aluminum using CNC for a precision cut design. It features Type III hardcoat anodizing and enlarged mag well ramps for quick and easy reloads. **Compatible with GLOCK® OEM and Elite Tactical Systems magazines.**
Follow our step-by-step picture guide to install your lower parts kit and buffer.
Not sure which parts to pick? Read our Ultimate Guide on How to Build an AR-15.
New to building custom guns? Read our FAQ: What Is An 80% Lower?
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