Excalibur Pro Shot ACP Triggers Blue. Adjustable from one to two stage configurations. Standard model fits Micro 308 Short/315/335/355 Matrix 310/330/355/380/405/Sapphire Phoenix/Vixen/Exocet 200/Exomax/Relayer Y25/Offspring. Bullpup model fits Micro Suppressor Matrix Bulldog 330/380/400. Does not fit: Grizzly GRZ2 G340 Axiom SMF Ibex SMF Matrix Cub Matrix Sapphire Equinox Eclipse XT or Vortex. Specifications for Excalibur Pro Shot ACP Triggers: Manufacturer: Excalibur Crossbow Color: Blue Features of Excalibur Pro Shot ACP Triggers: Frictionless Roller Catch Technology Adjustable from one to two stage configurations Consistent 3 lb pull Package Contents: Excalibur Pro Shot ACP Triggers Excalibur EXP73613: Pro Shot ACP Triggers Blue