{"product_id":"proof-research-sig-cross-pre-fit-carbon-fiber-barrel-260-rem-16in-1-8-twist-5-8-24-138939","title":"PROOF Research Sig Cross Pre-Fit Carbon Fiber Barrel .260 Rem 16in 1:8 Twist 5\/8-24 138939","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eUpgrade your SIG Cross with the PROOF Research Pre-Fit carbon fiber barrel engineered for fast, at-home installation. This drop-in design is built to be stand-alone and guaranteed to headspace, helping you swap barrels without sending your rifle to a gunsmith. Designed for precision performance, it features a 16-inch barrel length, a 1:8 twist rate, and a 5-groove bore, paired with 5\/8\"-24 TPI muzzle threads for common suppressor and muzzle device compatibility. The carbon fiber construction helps reduce weight while enhancing durability and heat management for consistent shooting performance.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Highlights\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDrop-in, pre-fit barrel for SIG Cross with at-home installation and no gunsmith required\u003c\/li\u003e\n  \u003cli\u003eCarbon fiber barrel construction designed for reduced weight and improved heat dissipation\u003c\/li\u003e\n  \u003cli\u003e.260 Remington chambering with 16-inch length for a compact, field-ready precision setup\u003c\/li\u003e\n  \u003cli\u003e1:8 twist rate with a 5-groove bore to support accuracy-focused bullet stabilization\u003c\/li\u003e\n  \u003cli\u003e5\/8\"-24 TPI threaded muzzle for suppressors and popular muzzle devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e PROOF RESEARCH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 138939\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 843068138939\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Bolt-action pre-fit rifle barrel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e SIG Cross\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliber\/Chamber:\u003c\/strong\u003e .260 Remington\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 16 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwist Rate:\u003c\/strong\u003e 1:8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Type:\u003c\/strong\u003e 5 Groove\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\/Finish:\u003c\/strong\u003e Carbon Fiber\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuzzle Threads:\u003c\/strong\u003e 5\/8\"-24 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDesign Feature:\u003c\/strong\u003e Drop-In; guaranteed to headspace (per manufacturer\/retailer listing)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eDisclaimer: 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.\u003c\/em\u003e\u003c\/p\u003e","brand":"PROOF RESEARCH","offers":[{"title":"Default Title","offer_id":44077152305274,"sku":"FLX-158877","price":1035.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/283695351.png?v=1767641062","url":"https:\/\/tlooutdoors.com\/products\/proof-research-sig-cross-pre-fit-carbon-fiber-barrel-260-rem-16in-1-8-twist-5-8-24-138939","provider":"TLO Outdoors","version":"1.0","type":"link"}