Enhance your AR-platform rifle with the Strike Industries SI-AR-CAGB Collar Adjustable Gas Block, engineered for precision control and exceptional gas flow management. Constructed from premium steel, this gas block features a robust design that ensures reliability in any condition. The innovative adjustable collar allows for fine-tuning of gas flow, optimizing performance for all shooting scenarios. Tool-less adjustment collar for quick modifications Six preset settings for effortless tuning Clamp-On mounted for easy installation Fits all 0.750" gas block journals Transform your shooting experience with the Strike Industries gas block, delivering unparalleled performance and accuracy.