The Sons of Liberty GB750V2 is a highly reliable product, meticulously crafted from 4140 Heat Treated Steel for an exceptional level of durability. This product comes with knurled set screws included, ensuring a secure and stable fit. It is also designed and ready to be pinned for ease of use. Notably, the Sons of Liberty GB750V2 is expertly designed to sit perfectly on the gas journal shoulder, showcasing its precision and well-thought-out construction.