Product Description The Rosco Manufacturing Husky Series 12.5 inch barrel is built around a SOCOM-inspired profile designed to help manage heat and reduce barrel whip while staying only slightly heavier than comparable lightweight profiles. It features a durable phosphate exterior with a chrome lined chamber and bore for improved corrosion resistance and easier cleaning. Finished with button rifling for the accuracy Rosco is known for, this 5.56 NATO barrel is a strong choice for hard-use AR builds. Product Highlights Husky profile inspired by SOCOM 12.5 inch barrels to help defeat heat and reduce barrel whip Chrome lined chamber and bore for enhanced longevity and corrosion resistance Phosphate coated exterior for rugged wear protection Button rifled for consistent performance and accuracy 5.56x45mm NATO chambering with 1:7 twist and 1/2x28 muzzle threading for broad compatibility Specs Brand: Rosco Manufacturing Series: Husky Caliber: 5.56x45mm NATO Barrel Length: 12.50 in Twist Rate: 1:7 Material: 4150 CMV Finish/Coating: Phosphate coated; chrome lined chamber and bore Rifling Method: Button rifled Muzzle Thread: 1/2x28 Weight: 2.04 lb Package Dimensions (L x W x H): 15.8 x 3.0 x 2.4 in UPC: 850039693397 Manufacturer Part Number: HSK-125-SOC-556-7-SP-C Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.