This is a Ruger Ring known as the Standard, model 90319.
Ruger 30mm high ring with matte stainless finish" accommodates objective lens diameters up to 52mm.
Features:
Genuine Ruger® Factory Accessory
Matte stainless finish
This is a Ruger Ring known as the Standard, model 90319.
Ruger 30mm high ring with matte stainless finish" accommodates objective lens diameters up to 52mm.
Features:
Genuine Ruger® Factory Accessory
Matte stainless finish