Santan Stt-15 Pillar 9mm OD Green Rifle

The San Tan Tactical STT-15 Pillar 9mm OD Green Rifle lower receiver is purpose-built for shooters and gunsmiths demanding a precision foundation for modern sporting rifles and tactical platforms. This anodized lower serves as the regulated firearm component, engineered to withstand the demands of duty-grade applications and training cycles.

Machined from high-grade 6061-T6 aluminum, the STT-15 lower features San Tan Tactical's proprietary pillar design, which reinforces critical stress points where the upper receiver and buffer tube assembly interface. The anodized finish provides corrosion resistance and durability in harsh environments, while the tight tolerances ensure reliable function across thousands of round counts.

Designed specifically for 9mm platform compatibility, this lower accommodates blowback upper configurations, giving builders flexibility in caliber selection and system architecture without requiring separate lower receivers. Law enforcement armorers, military personnel, and serious civilian builders benefit from this lower's durability and precision fit, making it an excellent choice for both duty and competition use.