Vortex Optics Razor Red Dot Sight 45 Degree Offset Mount Mount the Razor Red Dot at a 45 degree angle alongside your primary magnified optic for optimal aiming versatility when the situation gets up close and personal. The RT45 attaches to either side of a Picatinny rail to accommodate left- or right-handed shooters. Precision-machined aluminum with hard-coat anodized finish ensures lightweight durability. <span class="a-text-bold">Optical Quality:</span>Vortex uses dense optical glass painstakingly designed, shaped, and polished to eliminate flaws. Sophisticated optical designs and glass result in a brighter, sharper, more colorful image. <span class="a-text-bold">Superior Construction:</span>You may pay a bit more for optics using quality materials, sophisticated designs, and strict tolerances, but the result is greater reliability in the field. <span class="a-text-bold">Attention to Detail:</span>Our standards are exacting. Vortex engineers spend thousands of hours designing every part, testing every component, and scrutinizing every detail. If we dont absolutely love it, we know you wont either.