Home / SCOPE MOUNTS AND RINGS / WEAVER BASE TOP MOUNT #40A EXTENSION ALUMINUM BLACK WEAVER BASE TOP MOUNT #40A EXTENSION ALUMINUM BLACK Manufacturer : Weaver UPC : 076683480408 SKU: d41d8cd98f00 Category: SCOPE MOUNTS AND RINGS Product ID: 137693 Related products WEAVER BASE TOP MOUNT #16 ALUMINUM BLACK $595 WEAVER BASE TOP MOUNT #29 ALUMIMUM BLACK $595 DNZ GAME REAPER INTEGRAL 1-PC MOUNT BRNG A-BOLT 3 LA MED BLK $6895 TRIJICON SRO GLOCK MOS AND SPRINGFIELD OSP MOUNTING KIT $1800