Ade Advanced Optics Tactical 1" Compact Weaver-picatinny High Profile See Through Riser Rail Riflescope Sight STANAG dimension includes mounting base, two through-holes, and proper clearance below the base for STANAG styled scopes High-profile COMPACT mount for rifles with Picatinny/Weaver rail. See-through design allows for the use of the original iron sights I inch saddle height