UTG Hi-profile Full Size Riser Mount - 1" High, 13-slot New Gen. Picatinny style riser mount with see-thru design and STANAG dimension for flat top Model 4/15s, FALs and other rifles. Precision machined to exact tolerances from aircraft-grade aluminum alloy. Clever retention thumb nuts and locking plate for easy and quick installation. Anodized black matte finish. Has plenty of slots for maximum scope ring adjustments.