CMC's AK drop-in trigger group is the ultimate upgrade for your AK47 variant. With its 100% modular, CNC-machined, and easy to install design, our trigger group will give your AK the cleanest, most reliable trigger pull it's ever had. Features: Made from 8620 Alloy Steel, S-7 Tool Steel, and 7075-T6 aircraft grade Aluminum Ultra-crisp trigger Glass-smooth break Minimal lock time Positive trigger reset Hand assembled; hand tested Totally self-contained one-piece assembly Easy to install