The Superlative Arms AR-15 Solid Titanium Adjustable Gas Block is designed for .750'' diameter barrels and features a durable gray finish. This adjustable gas block allows for fine-tuning of the gas flow, enhancing the performance of your AR-15 platform.Key FeaturesMaterial: Constructed from solid titanium for lightweight durability.Adjustable Gas Settings: Offers the ability to customize gas flow for improved cycling and performance.Style: Features a screw style design for secure installation.