NcSTAR Picatinny Riser .625 Long Black. 625. Specifications for NcSTAR Picatinny Riser .625: Manufacturer: NcSTAR Color: Black Finish: Anodized Fabric/Material: Aluminum Gun Rail: Picatinny Height: 0.625 in Condition: New Features of NcSTAR Picatinny Riser .625 Allows the user to raise their optic 0.625 above their receiver height Picatinny rail for the desired optic height. Great for a better heads-up shooting with night vision equipment. Package Contents: NcSTAR Picatinny Riser .625 NcSTAR M1913RIS625L: Picatinny Riser .625 Long Black