Dead Air P-Series 3-Lug Adapter Stainless Steel Fits Primal/Wolfman Black. The Dead Air 3-Lug is a solid steel design that provides precision fitment and alignment. The spring is a heavier design than the competition helping eliminate the inherent wobble found in most 3-Lug devices. The body is a sealed design to help keep carbon out and can also be broken down for maintenance. Specifications for Dead Air P-Series 3-Lug Adapter Fits Primal/Wolfman: Manufacturer: Dead Air Silencers Fabric/Material: Steel Color: Black Finish: Nitride Length: 1.52 in Package Contents: Dead Air P-Series 3-Lug Adapter Fits Primal/Wolfman