Steel Match Mounts by X-Accu, a product of Vector Optics. These mounts are made to a higher standard than the basic VictOptics mounts, ideal for Zero/Low Recoil scope setups. These Steel Mounts also feature a Quick Detach System meaning they can be removed and refitted with ease and thanks to the Steels Hardness, Stripping threads due to repeated removal is less likely than their aluminium counterparts 

• For 30mm Diameter Scope Tubes
• Fits 21mm Picatinny (RIS) Rail
• Clearance (From Mount to Base of scope): 8.4mm 
• Brace Thickness: 18mm