Brought to you by Fox 2 Industries, these Mark-54 penetrator rounds are designed for the Mercury Rise Torpedo .50 Caliber Paintball Revolver. Each round weighs 3 grams and features a streamlined polymer body with a super sharp steel spike tip for maximum penetration. Each batch is filled with a mix of black and gold spikes. Tip to tail, each projectile measures .94 inches long (24mm) and fits snugly in the ammo cylinder to prevent jamming when the cylinder rotates. Listing is for a quantity of 25 Made in Maine, USA Please note: These are too long for the Umarex TR50 cylinder and are designed to work with the MERCURY RISE TORPEDO PAINTBALL REVOLVER