Upgrade your Tokyo Marui Hi-CAPA 4.3 / 5.1 with the NEXXSPEED CNC Brass Hammer Spring Power Regulator Kit. Crafted from high-quality brass, this power regulator offers unbeatable durability and stability. Experience seamless hammer force adjustments for enhanced performance and precision. Available in a polished brass finish, this kit is the perfect enhancement for serious airsoft enthusiasts looking to elevate their game.