Product DescriptionThe Patriot Ordnance Factory Drop-In Trigger (00457) is a single-stage, non-adjustable trigger module designed for AR-platform rifles. It delivers a consistent 4.5 lb pull weight and arrives pre-assembled in a hardcoat anodized aluminum housing with rubber urethane feet for fast, drop-in installation. The trigger, disconnector, and hammer are made from American A2 steel and nitride heat treated to a 70 Rockwell case hardness for excellent strength and corrosion resistance. Custom-fit stainless steel KNS Precision anti-walk pins are included for both standard AR and POF USA ambidextrous lower receivers.Product Highlights Drop-in, single-stage AR trigger module with a crisp 4.5 lb pull weight Hardcoat anodized aluminum housing with rubber urethane feet for secure fitment A2 steel trigger components nitride heat treated to 70 Rockwell case hardness Includes stainless steel KNS Precision anti-walk pins for reliable retention Built for competition, hunting, and tactical applications right out of the boxSpecs Brand: Patriot Ordnance Factory Manufacturer Part Number: 00457 UPC: 847313004574 Trigger Type: Single-stage Pull Weight: 4.5 lb Trigger Shoe: Curved Adjustment: Non-adjustable Housing Material/Finish: Hardcoat anodized aluminum housing; black/red finish Trigger/Disconnector/Hammer Material: American A2 steel Heat Treatment: Nitride heat treated to 70 Rockwell case hardness Included Hardware: Custom-fit stainless steel KNS Precision anti-walk pins Compatibility: Standard AR and POF USA ambidextrous lower receivers Not Compatible With: DPMS 308 lowers with straight trigger guards; SIG 716 lowersDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.