POF USA Single Stage EFP Drop In Trigger System 4.0 LB Red 00. Includes KNS anti-walk pins. With Enhanced Finger POF-USA's single-stage EFP Drop In Trigger System comes standard with a 4-pound pull weight. It is pre-assembled in a hard coat Anodized aluminum housing. Carved from American A2 steel the Trigger Disconnect and Hammer are all Nitride Heat-Treated to 70 Rockwell case hardness for ultimate strength and corrosion resistance. When assembled POF-USA's signature rubber urethane feet keep the unit snug in the lower receiver. POF-USA also includes stainless steel KNS Precision Anti-walk Pins with every trigger. Placement design. NOTE: Will not work with DPMS 308 lowers that have straight trigger guards or with Sig 716 lowers. POF-USA DOES NOT RECOMMEND THE USE OF THIS TRIGGER IN ANY 9MM PCC CARBINES. Specifications for POF USA Single Stage EFP Drop In Trigger System: Manufacturer: POF USA Color: Red Trigger Material: Stainless Steel A2 Steel Trigger Pull Weight: 4 lb Included Accessories: KNS Pins Condition: New Finish: Anodized Package Contents: POF USA Single Stage EFP Drop In Trigger System The POF USA Single Stage EFP Drop In Trigger System is a quality addition to the POF USA lineup. For more great deals on Rifle Triggers by POF USA please browse our POF USA Gun Parts page. POF USA 00516: Single Stage EFP Drop In Trigger System 4.0 LB Red