30/25.4mm管径

Tactical 25/30mm Riflescope Ring Universal Optic Scope Mount with Level Instrument For 20mm Picatinny Rail

 Main Material: Aluminum

Color:Black

Size(L W H): 8 x 6 x 4cm

Weight:114g

Diameter:25mm-30mm adjustable; 

ring inner diameter (without insert): 30mm 

ring inner diameter (with insert): 25mm

Rail:20mm