P320 Lower Parts, Components, Tooling / FCU Parts P320 Lower Parts, Components, Tooling FCU Tools FCU Parts FCU Tool & Part Bundles Apex- Forward Set Trigger Bar for P320 $90.00 Add To Cart Apex- Advanced Triggers for Sig P320 $65.00 Select Select Trigger Advanced Curved Trigger Advanced Flat Trigger Add To Cart Apex- Forward Set Trigger Component Kit for Sig P320 $140.00 Select Select Trigger Curved Forward Set Trigger Kit, Shipping Included Flat Forward Set Trigger Kit, Shipping Included Add To Cart SIG OEM P320 MANUAL SAFETY PARTS KIT $99.99 Add To Cart MUP1 / Sig P320 FCU- Complete Lower Parts Kit (by JSD/Patmos Arms) Sale Price:$119.00 Original Price:$229.99 sale Add To Cart