Adjustable from 1 to 2-stage configurations; Equipped with the innovative ACP (Adjustable Custom Precision) trigger system, the Excalibur Pro-Shot Trigger offers top performance and enhanced consistency; Consistent clean and crisp 3lb trigger pull with no creep; Frictionless Roller Catch Technology eliminates any grit from the sear and catch; Featuring a silent manual safety mechanism, the Pro-Shot Trigger provides a secure and reliable safety function that operates quietly, enabling hunters to maintain a low profile; The Standard Trigger Type fits Micro 308 Short/315/335/355, Matrix 310/330/355/380/405/Sapphire, Phoenix/Vixen/Exocet 200/Exomax/Relayer Y25/Offspring models; The Pro-Shot ACP Bullpup Trigger option fits Micro Suppressor, Matrix Bulldog 330/380/400 models; Does not fit: Grizzly, GRZ2, G340, Axiom SMF, Ibex SMF, Matrix Cub, Matrix Sapphire, Equinox, Eclipse XT, or Vortex; Crafted with high-quality materials and precision engineering, the Pro-Shot Trigger boasts a premium build quality that is durable, reliable, and long-lasting; Excalibur's archery gear is known for its durability, versatility, and changeability