These quality rings from FNH are the perfect choice for mounting your high end scope to your FNH precision rifle. The solid steel construction ensures that your scope will stay connected to your rifle under all circumstances. Features lightening cuts/holes in strategic locations to decrease the weight while maintaining strength. A total of 12 Torx head screws tighten the halves together, and beefy nuts keep everything mounted to any standard picatinny rail. For scopes with 30 mm main tubes.