Product Description The Timney Triggers AR-15 Competition Trigger is a drop-in upgrade designed to deliver a crisp, consistent 3 lb pull to help improve precision and overall shootability. Each Timney trigger is individually tested and hand calibrated in the action it was designed for before shipment. Built in a lightweight aluminum housing with a solid straight trigger shoe, this assembly installs without gunsmithing and requires no fitting or adjustments. Product Highlights Competition-focused 3 lb trigger pull to help improve accuracy and consistency Drop-in AR-15 trigger design-no fitting, gunsmithing, or adjustments needed Solid, straight trigger shoe for a clean, repeatable press Durable, lightweight aluminum trigger housing for reliable performance Designed for mil-spec AR-15/M4 lowers that use small (.154 in) pins Specs Brand: Timney Triggers Manufacturer Part Number: 667S-ST UPC: 081950667505 Platform Fit: Mil-Spec AR-15 / M4 Trigger Type: Competition, drop-in Trigger Shoe: Straight (solid) Trigger Pull Weight: 3 lb (factory set) Pin Size: Small pin; fits AR-15 lowers with .154 in diameter trigger/hammer pin holes Housing Material: Aluminum Disclaimer: 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.