NcSTAR Low Profile KeyMod 30mm Ring Mount - Single Black. Specifications for NcSTAR Low Profile KeyMod 30mm Ring Mount: Manufacturer: NcSTAR Finish: Black Anodized Flashlight Application: Hunting Base/Mount Type: Riflescope Ring Ring Height: 1 in Tube Diameter: 30 mm Ring Quantity: Single Fabric/Material: Anodized Aluminum and Steel Additional Features: Low Profile Light Weight Color: Black Features of NcSTAR Low Profile KeyMod 30mm Ring Mount: Works great for mounting a 30mm red dot reflex optic onto any KeyMod mount Can be used for mounting a red dot sight in an offset mounting position on any KeyMod handguards Perfect for mounting onto the top surface of the VISM AK KeyMod Mount Receiver Cover (VMTAKKM) or top of the VISM AK KeyMod handguards (VMAKKMS or VMAKKME). You can mount a 30mm red dot reflex optic directly to your KeyMod mount platform Ring Centerline Height is 1.0" above KeyMod mounting surface Six bolt pattern ring mount for a secure red dot reflex optic mount Black anodized aluminum construction. Package Contents: NcSTAR Low Profile KeyMod 30mm Ring Mount - Single NcSTAR VMLPKMR: Low Profile KeyMod 30mm Ring Mount - Single Black