NcSTAR Picatinny Riser .410 Long Black. 410. Specifications for NcSTAR Picatinny Riser .410: Manufacturer: NcSTAR Color: Black Finish: Anodized Fabric/Material: Aluminum Gun Rail: Picatinny Length: 5.5 in Height: 0.41 in Weight: 3.6 oz Condition: New Features of NcSTAR Picatinny Riser .410 Allows the user to raise their optic 0.410 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 .410 NcSTAR M1913RIS410L: Picatinny Riser .410 Long Black