Shop › POF DROP IN TRIG 4.5LB SNGL STAGE POF DROP IN TRIG 4.5LB SNGL STAGE $180.00 Patriot Ordnance Factory Single Stage Drop-In Trigger System, 4.5 Pound Pull Weight, Curved, Includes Trigger, Disconnect, and Hammer 00457 Quantity: Add To Cart Added! Patriot Ordnance Factory Single Stage Drop-In Trigger System, 4.5 Pound Pull Weight, Curved, Includes Trigger, Disconnect, and Hammer 00457