Product Description Upgrade your Sig Cross without the downtime of sending your rifle to a gunsmith. The PROOF RESEARCH Pre-Fit Bolt Action Barrel is a drop-in design engineered for at-home installation and is designed to achieve proper headspacing without a gunsmith. Built from stainless steel for durability and corrosion resistance, this .260 Rem barrel features a 20-inch length, 1:8 twist rate, 5-groove bore, and 5/8"-24 TPI muzzle threads for compatibility with common muzzle devices. Product Highlights Drop-in, pre-fit barrel design for the Sig Cross to simplify barrel changes at home Stainless steel construction for corrosion resistance and long-lasting erosion wear characteristics .260 Rem chambering with a 20-inch barrel length for a balanced performance profile 1:8 twist rate with a 5-groove bore for consistent bullet stabilization 5/8"-24 TPI threaded muzzle for use with suppressor mounts and other muzzle devices Specs Brand: PROOF RESEARCH Manufacturer Part Number: 138960 UPC: 843068138960 Product Type: Pre-Fit Bolt Action Barrel Compatibility: Sig Cross Caliber: .260 Rem Barrel Length: 20" Twist Rate: 1:8 Bore/Grooves: 5 Groove Muzzle Threads: 5/8"-24 TPI Material/Finish: Stainless Steel Design Feature: Drop-In 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.