The EBR chassis system is available for M1A/M14, M1 Garand, and Mini 14 rifles, that includes a machined aluminum overall body with an anodized finish for improved precision and reliability. Its rigidity lessens vibration for greater eye reduction and sight radius, and higher mount positions that increase eye relief/sight radius. https://josuegufpy.nizarblog.com/31933488/the-fact-about-m1-carbine-chassis-that-no-one-is-suggesting