Product Description The Timney Triggers AR-15 Solid Drop-In Trigger is a self-contained module designed for small-pin AR-15 platforms to deliver an exceptionally smooth, crisp, creep-free single-stage trigger pull. Built to install easily with no fitting, gunsmithing, or adjustments required, this drop-in design helps improve consistency and precision while offering a trigger feel more akin to a traditional precision bolt-action rifle than a standard combat-style trigger. Key components are housed in a lightweight aluminum casing, with durable tool-steel internals engineered for long service life. Product Highlights 4 lb single-stage pull designed for a crisp, creep-free break Drop-in, self-contained trigger module for small-pin AR-15 lowers No fitting or adjustments required for installation and reliable performance Lightweight aluminum housing protects internal components Tool-steel internals (including S7 tool steel hammer) for durability and impact resistance Specs Brand: Timney Triggers Product Type: Drop-in trigger module Platform Fit: AR-15 (small pin); designed to fit mil-spec AR-15/M4 platforms Trigger Type: Single-stage Trigger Pull Weight: 4 lb Housing Material: Aluminum Hammer Material: S7 tool steel Other Component Material: A2 tool steel (heat treated) Manufacturer Part Number: 668S UPC: 081950668236 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.