The San Tan Tactical STT-15 Pillar billet lower is machined from 7075-T651 aerospace aluminum with ambidextrous bolt release, magazine release and QD sling points.
It has a 1.38″ flared magwell, oversized winter trigger guard and Ultra Grip textured controls. San Tan states mil-spec AR-15/M4/M16 component compatibility and STANAG magazine fit. Platform caliber is .223 Rem / 5.56 NATO.
Specifications
- Brand: San Tan Tactical
- Model: STT-15
- Manufacturer Part #: STT-15
- UPC: 680599034077
- Caliber: .223 Rem / 5.56 NATO
- Action: Semi-Auto
- Type: Stripped lower receiver
- Material: Billet 7075-T651 aluminum
- Controls: Ambidextrous bolt and magazine release
- Finish: MIL-A-8625 Type III hard anodize
Ships to a licensed FFL dealer for transfer. The buyer must pass the required background check and meet all federal, state and local laws.









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