Our custom extractors are crafted from S7 tool steel, offering tighter tolerances and enhanced durability compared to factory models. The thicker material ensures a more secure fit, leading to improved extraction reliability, especially for match-grade ammo like Lapua and Eley. With a 30% increase in spring tension, our extractors provide a stronger grip on the cartridge rim, delivering consistent and smooth extraction even under heavy use. While the initial break-in period may result in a slightly tighter bolt, this upgrade ensures long-term wear resistance, corrosion protection, and a reliable extraction system for your CZ457. Our precision springs further enhance the system's performance, making this a must-have for anyone seeking maximum reliability and longevity from their rifle.