Pistols - GBB Brass Inner Barrel Upgrade Size:Double Bell Hi-Capa Reinforced piston head will provide

Reinforced piston head will provide extra duration during rapid & prolonged firing

CCT HopUp busking is manufactured by high quality anti-oil rubber material

Perfect dot design for faster and more accurate sight alignment

With the regulator body coming it at just 0

Pistols - GBB Brass Inner Barrel Upgrade Size:Double Bell Hi-Capa Reinforced piston head will provideGBB Pistol Brass Inner Barrel Upgrade Internal Diameter: 7. 08mm Material: Brass Made in house at Command Elite Hobbies lathed Brass Inner Barrel, designed for your pistol These barrels have a 7. 08mm inner diameter. The method behind this is to create an even air pocket between the gel and barrel, giving it a more accurate escape from the barrel. These are made of high quality brass material. The quality upgrade will see improvement in FPS numbers