Tier One Picatinny Rails 0 MOA Barnard S Black. By doing this there is no accuracy loss due to re-setting for different operations. All rails are made from 7075T6 Aluminium and are available for various firearms. Tier One Picatinny Rails exceed the manufacturing criteria set out for the metric upgrade to the Picatinny Rail in 2009 STANAG 4694 NATO. Please ensure that before installation firearm manufacturers recommended torque settings are checked. Do not exceed a maximum of 1.5 Nm / 14 in-lbs. Specifications for Tier One Picatinny Rails: Manufacturer: Tier One Color: Black Fabric/Material: 7075T6 Aluminium Package Contents: Tier One Picatinny Rails Screw Set Tier One T1PRBARS0M: Picatinny Rails 0 MOA Barnard S Black