Universal 21mm Weaver Picatinny Rail Base Adapter Converter for Scope Mounts Heavy Duty Two Piece Rail Mount Fits 21mm Rails Ideal for Hunting Airsoft and Tactical Gear

Two-Piece 21mm Rail Base Adapter for Scope Mounts
✔️ Aluminum alloy 21mm rail base, adjustable dia 0.66-1.18in 16.8-30.0mm Pack of 1

This rail base adapter converts to a tough, two-piece clamp for secure scope and accessory mounting on 21mm Weaver/Picatinny rails. Ideal for hunting, airsoft, and tactical gear.

✅ Material: Aluminum Alloy
✅ Rail compatibility: 21mm Weaver/Picatinny
✅ Adjustable diameter: 0.66-1.18in (16.8-30.0mm)
✅ Net weight: 73g; Gross weight: 86g
✅ Includes rail converter and wrench

💡 What is a 21mm rail base adapter used for and why should you own one?

It's handy for quick, secure mounting of scopes and accessories on 21mm Weaver/Picatinny rails across hunting rifles, airsoft guns, and tactical setups.

- Quick optic mounting on 21mm rails
- Two-piece clamp supports varying tube sizes (0.66-1.18in / 16.8-30.0mm)
- Lightweight aluminum alloy with solid fit
- Includes wrench for fast, tool-free setup

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