Product Description The Sig Sauer MCX SPEAR-LT replacement barrel and gas block assembly is a genuine factory component designed for the 16-inch, 5.56 NATO MCX-SPEAR LT platform. This complete assembly includes the barrel and gas block, making it a streamlined option for restoring or maintaining your rifle&&';;s performance and reliability. Product Highlights Genuine Sig Sauer replacement barrel for the MCX-SPEAR LT platform Complete assembly includes barrel and gas block for simplified installation 16-inch barrel chambered in 5.56x45mm NATO for MCX SPEAR-LT configuration 1/2x28 muzzle threading for compatibility with common 5.56 muzzle devices Black finish to match standard MCX SPEAR-LT aesthetics Specs Brand: Sig Sauer Manufacturer Part Number: 8901314 UPC: 798681675241 Platform Fit: Sig Sauer MCX-SPEAR LT Caliber: 5.56x45mm NATO Barrel Length: 16 in Thread Pitch: 1/2x28 Finish/Color: Black Included Components: Barrel and gas block assembly Material: Stainless steel 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.