11mm to 20mm Picatinny Rail Adapter 155mm Scope Mount Base Weaver Rail Extension

11mm to 20mm Picatinny Rail Adapter — 155mm Weaver Extension

11mm dovetail rails are common on air rifles, rimfire platforms, and older firearms — but the best optics and accessories mount to Picatinny. This adapter gives you a direct, solid conversion from 11mm dovetail to 20mm Picatinny without replacing your existing base.

Why Shooters Choose It

• Converts 11mm dovetail to 20mm Picatinny / Weaver rail — opens up your full optic options
• 155mm rail length provides ample space for scopes, rings, and accessories
• CNC machined aluminum construction — stable and lightweight
• Clamping screws lock securely to 11mm dovetail bases
• Compatible with air rifles, rimfire, and other 11mm dovetail-equipped platforms

Specifications

• Material: CNC Aluminum
• Input: 11mm Dovetail
• Output: 20mm Picatinny / Weaver
• Rail Length: 155mm