CMCs AK drop-in trigger group is the ultimate upgrade for your AK47 variant. With its 100% modular, CNC-machined, and easy to install design, this trigger group will give your AK the cleanest, most reliable trigger pull its ever had. Preset with your choice of factory pull of 2.5lbs" 3.5lb" or 4.5lbs. The CMC AK2.0 Elite Trigger utilizes the most advanced manufacturing and quality control techniques. CMCs critical sear engagement surfaces have a proprietary machining process that renders superior surface finish and dimensional control. As compared to their competition, the techniques used to establish a 1-2 RMS surface finish as opposed to EDMing which leaves a pitty 32 RMS, compared to a mirror which is 0 RMS. Best of all, the CMC AK 2.0 Elite Trigger is proudly 100% Made in the Great State of Texas, and comes with CMCs Satisfaction Guarantee and Lifetime Warranty.Features :Curved TriggerMade from 8620 Alloy Steel, S-7 Tool Steel, and 7075-T6 aircraft grade AluminumFactory preset and non-user adjustable pull weightUltra-crisp triggerGlass-smooth breakMinimal lock timePositive trigger resetHand assembledHand tested