© Hinterland OutfittersSan Tan Tactical STTBBPILLAR1 STT-15 Big Bore Pillar Upper Multi-Caliber 7075-T6 Aluminum Black Anodized Receiver for AR-15
- Brand
- San Tan Tactical
- Category
- Gun Parts
- Gun Part Type
- Upper Receiver
- UPC
- 680599034046
Overview
The San Tan Tactical STT-15 Big Bore Pillar Upper Receiver is a multi-caliber semi-complete upper receiver machined from 70-T6 aluminum with a black anodized finish. Weighing 8.2 oz, it features an engineered truss design that functions like a bridge to distribute stress across the entire platform rather than concentrating it behind the barrel threads, thereby enhancing structural strength and improving accuracy. This receiver is optic-ready and requires a barrel, handguard, charging handle, forward assist, gas block, gas tube, muzzle brake, and bolt carrier group to complete.
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