This is a Ruger Ring known as the Standard, model 90321.
Ruger 30mm high ring with matte blued finish" accommodates objective lens diameters up to 42mm.
Features:
Genuine Ruger® Factory Accessory
Matte blued finish
This is a Ruger Ring known as the Standard, model 90321.
Ruger 30mm high ring with matte blued finish" accommodates objective lens diameters up to 42mm.
Features:
Genuine Ruger® Factory Accessory
Matte blued finish