RioRand K01 Rail Mount Quick Release Adapter Offset Extension Tactical Rifle Scope Sight High Profile See Through Base Converter for Red Dots Optics Easy to install and detach, no tools needed 3-Slot universal QD lever lock adaptor and riser for red dots, scopes, and optics Fit any 20mm picatinny weaver Immediate conversion of any non-QD mount accessories to QD deployment Ajustible locking tension