Check the listing for details. MK Machining Billet Picatinny Rail Mount Level. Condition: New. Listed at 44.99 USD. Ensure your rifle is level to increase long range accuracy and consistency. Milled from 6061 Aluminum with a Type III Hardcoat Anodization for an aesthetically appealing, highly durable finish. Open-top design lets maximum light to the vial, which is encased in aluminum for a protected design. Installs under nearly all optics with no removal necessary. LOW PROFILE & SLIM FIT: Fits under low mounted scopes.LIFETIME WARRANTY: Proudly made in USA.INCREASE LONG RANGE ACCURACY & CONSISTENCY.OPEN TOP DESIGN to let maximum light into protected level vial.MATERIALS: 6061 aircraft grade aluminum with a type III hardcoat anodization.International buyers ? please note: Import duties, taxes, and charges aren't included in the item price or postage cost. These charges are the buyer's responsibility.Please check with your country's customs office to determine what these additional costs will be, prior to bidding or buying.