Boost your pistol’s accuracy and FPS with our Hi-Capa inner barrels. Crafted from high-quality materials for precision and durability, these barrels are available in multiple lengths and bore sizes to match your build. Ideal for pairing with upgraded hop-ups, our inner barrels are compatible with Tokyo Marui Hi-Capa 5.1 and similar GBB platforms. Whether you’re optimizing for competition play or long-range accuracy, these upgrades help your shots fly straighter and hit harder.