Rugged Fixed Mount, For Obsidian 45, 1/2X36 OF002 Available to order on-line. Ships in 5-14 days $71.77
Rugged Piston, 17-4 Stainless Steel, .578X28 Thread Pattern, Obsidian 45 OP001 Available to order on-line. Ships in 5-14 days $71.77
Rugged Universal Direct Thread Mount, 1/2X28 to 1.375" X 24 Thread Pattern, Matte Finish, Black DTM002 Available to order on-line. Ships in 5-14 days $79.75