NcStar AR-15 Integral Rings & Base Cantilever Scope Mount QR Weaver Style / Rear Ring 30mm & 1" Inserts

Features:30mm AR-15 Scope mount with Quick Release MountAllows you to quickly mount a 30mm or 1" scope onto your Picatinny RailFront Fixed Cantilever Ring with an adjustable for length Rear Ring, Rear Ring is also removableIncludes 1" inserts. Mount works with both 30mm and 1" scopesBlack Anodized Aluminum ConstructionLength: 4.7"Weight: 6.1 oz