The .308 80% Lower – Billet is a precision-machined receiver blank for builders crafting a high-power AR-10 platform. Made from solid 7075-T6 aluminum billet, it offers superior strength for .308 Winchester/7.62x51mm NATO builds. Its DPMS-pattern compatibility ensures straightforward parts pairing, and the raw, unfinished surface is ready for your custom milling and final anodizing or Cerakote.
Key Features
- CNC-machined from a solid block of 7075-T6 aluminum billet for maximum rigidity
- Engineered for DPMS-pattern .308/7.62x51mm parts kits and uppers
- Raw, unfinished 80% lower ready for your final machining and coating
- Includes pre-milled fire control group pocket and trigger pin holes for alignment
- Reinforced stress points at the buffer tube thread and takedown pin areas
Specifications
| Caliber / Type | .308 Winchester / 7.62x51mm NATO (AR-10 Platform) |
|---|---|
| Material | 7075-T6 Aluminum Billet |
| Finish | Raw, Unfinished (Ready for Machining & Coating) |
| Compatibility | DPMS-pattern Parts and Uppers |
| Weight | Approx. 1.2 lbs (pre-machining) |
Building a .308 rifle demands a lower receiver that can handle significant bolt thrust and recoil forces. Starting with a 7075-T6 billet blank, rather than a forged or polymer lower, provides the material density and grain structure for a durable, long-lasting foundation. This is the correct starting point for a precision rifle or a hard-use battle rifle build where receiver flex is not an option.
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