Optimize your shooting setup with the NcSTAR RB26 30mm Weaver Ring featuring 1" Inserts, crafted for unparalleled reliability and versatility. This heavy-duty mounting solution is constructed from durable aluminum, ensuring a sleek black finish that accommodates both 30mm and 1" scope tubes for maximum flexibility. 30mm Heavy Duty Weaver Rings - Black with 1" Inserts Mounts onto Weaver and Picatinny type rails Aluminum Construction Rings will mount onto 30mm & 1" scope tubes Optic Centerline Height: 0.9" Ring Overall Height: 1.9" Weight: 4.3 oz Enhance your accuracy and reliability with NcSTAR's precision-engineered rings.