Achieve ultimate accuracy with the GoG Freak Barrel Insert - Aluminum. Sizes are measured in inches; for example, insert 691 is 0.691 inches and insert 695 is 0.695 inches. Professional paintball players have been using bore matching for years to ensure precision. With varying humidity and climate, a .68 cal paintball may slightly fluctuate in size. Match your paintball size to a specific barrel insert for accurate and competitive shooting.
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