Just like the AD-RECON-OFFSET, the AD-RECON-OFFSET-NW mount doesn't have windows in the scope rings and is made for putting high power glass onto a flattop style AR-15. The AD-RECON-OFFSET-NW works with scopes with Objective Housings as large as 56mm. The 2 inch cantilever throws the scope out front, allowing you to get the right eye relief. It is precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize. It features the Patented QD Auto Lock Titanium Lever system to accommodate both in spec and out of spec rail systems.Features:Does not require proprietary tools for adjustment.Can be adjusted with your finger or a flat blade screwdriver.Lever can be configured to lock to the front or the rear.Superior clamping surface to insure maximum rail engagement.Precision machined from 6061 T6 Aluminum.Hard coat anodized for a lifetime of performance.Fully adjustable to fit both in spec and out of spec rail systems.