Experience precision with the GLOCK OEM Barrel G27 40SW, engineered for optimal performance and durability. This high-quality replacement barrel features innovative polygonal rifling, which promotes better bullet integrity while significantly reducing wear and tear. Replacement Glock OEM barrel designed for G27 40SW Polygonal rifling enhances bullet-to-barrel fit Reduces barrel residue for improved longevity Increases bullet velocity for superior accuracy Upgrade your firearm with the GLOCK OEM Barrel G27 for unmatched reliability and shooting performance.