NcSTAR NC Star MRUHB1022V2, Ruger 10/22 Mount, Black/High/Gen 2 Ruger 10/22 see-through receiver Picatinny/MIL-STD 1913 rail mount, sleek new Gen 2 design Shooter is still able to Use the factory iron sights, by looking through sight channel below the Picatinny rail Mounts onto the top of the 10/22 receiver utilizing the pre-drilled holes on the receiver