The CMC Triggers AR15/AR10 9mm Single Stage Trigger Flat 3-3.5 lb. Pull from CMC Triggers delivers a precise, glass-like break designed for Pistol Caliber Carbine applications, with a non-adjustable 3.5 lb pull that provides predictable consistency across a variety of 9mm bolt carriers. Developed to accommodate the diverse bolt carrier designs found in the 9mm platform, the hammer dimensions have been refined to ensure reliable function and smooth engagement, making it an ideal drop-in upgrade for AR?15/AR?10 platforms seeking a clean, solid trigger pull without the need for complicated adjustments. CMC Triggers is the original manufacturer of the AR-15/AR-10 drop-in trigger group since 2003, and their critical sear engagement surfaces employ a proprietary machining process that yields superior surface finish and dimensional control, achieving a near-flawless 1-2 RMS finish compared to EDM methods that can leave rougher textures. Built in the United States from steel with a durable black/silver finish, this 9mm trigger combines reliable performance with refined feel, enabling shooters to improve shot-to-shot consistency, control, and speed in competitive, defensive, or target shooting scenarios.