Quick view RITON OPTICS Riton Optics, Contessa, 30mm Picatinny Rings, Hardened Steel, 19mm Height, Black $139.99 $109.99 The Riton by Contessa 30mm Hardened Steel Picatinny Rings are precision machined fixed rings that mount directly to a picatinny rail.Features : Precision Machined Hardened Steel Durable 19mm Height Compare Add to Cart