San Tan Tactical STT-15 Pillar Multi-Caliber Billet Upper

Description

Product Overview

San Tan Tactical STT-15 Pillar billet upper is an AR-15 pattern multi-caliber receiver built from 7075-T6 aluminum and finished in black anodize. Its truss pocket architecture is designed to better distribute stress across the upper, reducing concentration near critical areas around the receiver threads while keeping weight savings where material has less functional value.

Key Features

• Truss pocket geometry to help distribute stress more evenly across the receiver
• Black anodized finish for corrosion resistance and durable surface protection
• 7075-T6 aluminum billet construction for a rigid AR-15 upper receiver platform
• Weight-saving features in low-need areas to reduce unnecessary mass
• Pillar style upper design for consistent alignment and improved stability

For a sturdier AR-15 upper build with modern billet geometry, the STT-15 Pillar multi-caliber upper is a solid foundation for precision-focused setups.