The Spuhr Hunting Series 30mm H21mm/0.83" SAKO Hunting Scope Rings HS30-21 are meticulously crafted for optimal performance and durability. Designed to fit 30mm tubes on SAKO OptiLock bases/rails, these rings feature one plain classic top cover and one Spuhr Interface top cover, providing versatility and strength. With a height of 21mm (0.83") and a weight of 82 grams (2.9 oz), these rings offer a secure and stable mounting solution for your hunting scope. The diagonally cut design enhances strength, while the smooth and rounded profile ensures an aesthetically pleasing look on traditional hunting firearms