Atlas Bipods Atlas Bipod Adapter Spigot for A.I and A.I.C.S. use with BT10NC Black. The AAIS is constructed from 6061T6 Aluminum with a type II hard coat anodize mated with an alloy steel Spigot that is finished with a Manganese Phosphate. The AAIS weighs approximately 4.7 ounces is proudly made in specialized factories and has a cost of 69.95. Specifications for Atlas Bipods Atlas Bipod Adapter Spigot for A.I and A.I.C.S. use with BT10NC: Manufacturer: Atlas Bipods Country of Origin: USA Package Contents: Atlas Bipods Atlas Bipod Adapter Spigot for A.I and A.I.C.S. use with BT10NC Atlas Bipods BT19 Atlas Bipod Adapter Spigot for A.I and A.I.C.S. use with BT10NC Black