In the firearms industry, gas blocks play a crucial role in the function of AR-15 rifles. They regulate the flow of gas from the barrel to the gas tube, ensuring reliable cycling of the firearm. The design of gas blocks varies, with options like low-profile, adjustable, and rail height, catering to different needs. Low-profile gas blocks offer versatility, allowing for a sleek fit under most handguards. Meanwhile, adjustable gas blocks provide control over gas flow, enhancing performance. Investing in a quality gas block can significantly improve your AR-15’s reliability and customization.