Crafted for precision and versatility the CMMG 16.1" 300 Blackout Carbine Barrel is a top choice for custom AR15 builds. Engineered with a durable 4140 chrome moly construction this barrel features a robust salt bath nitride finish ensuring longevity and resistance to wear. Its 1:7" twist rate accommodates a range of bullet weights enhancing performance and accuracy. Designed with a multi-role profile it offers adaptability across various shooting scenarios. The M4 barrel extension is expertly installed providing a seamless fit to your setup. With a carbine-length barrel and 5/8x24 threads this component is perfect for those seeking reliable and precise shooting capabilities in the 300 AAC Blackout caliber.