Cornerstone Overview
The term “cornerstone” refers to the essential foundation upon which something is built. When starting your AR-15 project, the lower receiver is your first step. The quality of our Cornerstone receiver demonstrates that you’re making the right choice for a solid and dependable AR build. When paired with our Grey Ghost Precision uppers, it’s a combination that’s tough to beat.
Features
- Designed with precision that exceeds Mil-Spec tolerances, keeping critical dimensions within ±0.001″.
- Crafted from forged 7075-T6 Aluminum for enhanced durability.
- Finished with a black hard anodize, achieving a surface hardness of 60 Rockwell.
- Equipped with a nylon-tipped tensioning screw to maintain a secure fit between the upper and lower receivers for years.
- Compatible with nearly all AR parts kits and upper receivers.
- Includes a flared magwell for easier magazine changes.
- Displays pictogram safe and fire indicators for quick reference.
- The front of the magwell features chevrons and distinctive Grey Ghost markings, linking it to other Grey Ghost Precision rifles.
Weight
- Total Weight: 0.5 lbs
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