B&T Industries - Atlas Raider Cleats - BT-BT74 :

The BT74 Atlas Raider Cleat Feet are turned from 303 Stainless Steel bar stock in one piece for strength and durability. They will fit V8, PSR and CAL model Atlas Bipods, as well as adaptors that use our feet. Easily installed with the press of a stainless steel plunger.

The Cleat portion is approximately 0.75 inch long with the largest outer diameter of approximately 1.155 inch. Sold as a pair. Available in raw stainless steel only..