BILLION DUO Cantilever Scope Mount

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The BILLION DUO LD-3001-K is a dual-ring cantilever scope mount designed to fit both 30mm and 1-inch (25.4mm) scope tubes on standard 20mm Picatinny rails. It features a quick-detach base for fast on-and-off installation without losing zero, making it a versatile and practical choice for rifle optics setups. Overall it offers a solid blend of compatibility and convenience at a mid-range price point.
Key Features & Specs
| Ring Compatibility | Fits both 30mm and 1-inch (25.4mm) scope tube diameters |
|---|---|
| Mount Style | Cantilever dual-ring design for forward eye relief positioning |
| Rail Compatibility | Fits standard 20mm Picatinny and Weaver-style rails |
| Attachment | Quick-detach (QD) lever base for tool-free removal and reattachment |
| Material | Aluminum alloy construction for a balance of durability and light weight |
| Zero Retention | QD system designed to return to zero after repeated mounting and dismounting |
| Model Number | LD-3001-K |
Best for: Shooters who use multiple firearms or frequently swap optics and need a reliable, quick-detach cantilever mount compatible with both 30mm and 1-inch scopes on a Picatinny rail.