The Sightron Contessa SPP05/B 40mm Steel Picatinny Rings are a pair of precision-machined, hardened steel scope rings manufactured in Italy by Contessa SRL, representing one of the most respected ring systems available for serious long-range and competition shooters who demand uncompromising durability and guaranteed return to zero. The SPP05/B designation identifies these as the medium 14.5mm height variant in the 40mm SPP series, compatible with both Picatinny and Weaver rails via a 5mm stop recoil lug for Picatinny and 4mm for Weaver, making them exceptionally versatile across a wide range of rifle platforms. Machined from solid hardened steel and finished in matte black, these rings deliver a secure, vibration-resistant scope platform that outperforms aluminum alternatives in both rigidity and long-term durability under heavy recoil. At 248 grams the pair, they are a heavier but significantly more robust alternative to aluminum ring sets and are backed by Contessa's reputation for Italian precision manufacturing. Sightron Contessa SPP05/B 40mm Diameter 14.5mm Height Steel Scope Rings for Picatinny Rails 72005