The Santan STT 15 Pillar Upper Receiver delivers precision machining for AR-15 builds, featuring a reinforced design for enhanced durability. Ideal for competitive shooters and tactical applications, this upper receiver maintains strict tolerances while offering seamless compatibility with standard AR-15 components.
- Brand: Santan
- Model: STT 15
- Type: Stripped Upper Receiver
- Material: 7075-T6 Aluminum
- Finish: Hardcoat Anodized
- Compatibility: Mil-Spec AR-15 Lower Receivers
Free FFL transfer to any Tennessee dealer.





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