Aero Precision SOLUS Firing Pin Parts Kit Black. Specifications for Aero Precision SOLUS Firing Pin Parts Kit: Manufacturer: Aero Precision Gun Model: Solus Action Type: Bolt Action Color: Black Package Contents: Aero Precision SOLUS Firing Pin Parts Kit Firing Pin Firing Pin Head Firing Pin Spring (2x) O-Ring (2x) Set Screw What firearm models does the manufacturer say Aero Precision SOLUS Firing Pin Parts Kit is compatible with? The manufacturer suggests that Aero Precision SOLUS Firing Pin Parts Kit is compatible with SolusAero Precision APRH103341C: SOLUS Firing Pin Parts Kit Black