No, this is a Type 1 bolt, which is designed to fit a 7.62x39 with a .125" bolt face depth. The 6.5 Grendel bolt is Type 2 SAAMI spec with a .136" bolt face depth.
This bolt is a Type 1 (.125" deep bolt face) designed for 7.62x39. We do not test fit or function with other calibers.
No, this is just for the bolt. You will still need a bolt carrier, firing pin, cam pin and firing pin retaining pin. The bolt is compatible with standard AR-15 firing pins, cam pins, and bolt carriers.
No, the bolt comes with an extractor assembly and ejector assembly installed, but does not come with a cam pin or firing pin. It is compatible with standard AR-15 cam pins and firing pins.