11mm Dovetail to 20mm Picatinny Rail Converter Scope Adapter Base Mount. Aluminum 3/5/7/9/11/13Slots M-Lock Rail Section Picatinny 20mm Rail Section. Mount type: shotgun rib 5.5-10mm width fit. Red Dot Laser Beam Sight Scope Rail Mount Rifle Pistol Air Gun Hunting w/Battery.
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