{"product_id":"proof-research-pr15-6mm-arc-stainless-steel-barrel-14-5-inch-5-8-24-1-7-5-twist-130377","title":"Proof Research PR15 6mm ARC Stainless Steel Barrel 14.5 Inch 5\/8-24 1:7.5 Twist 130377","description":"Product Description\n\u003cp\u003eThe Proof Research PR15 6mm ARC Stainless Steel Threaded Barrel delivers precision-engineered performance for AR-15 platform rifles. Constructed from premium chromium stainless steel, this 14.5-inch barrel is chambered in the increasingly popular 6mm ARC cartridge and features a 1:7.5 twist rate that ensures exceptional accuracy and projectile stability across a wide range of bullet weights. The muzzle is threaded 5\/8x24 for easy suppressor or muzzle device attachment, while the .750-inch gas block journal accommodates a standard low-profile gas block. A Nickel-Ion finish provides outstanding corrosion resistance, protecting the barrel through extended field use and harsh conditions. The intermediate-length gas system is optimally tuned to reduce felt recoil and improve cycling reliability, making this barrel a top-tier upgrade for competitive shooters and tactical enthusiasts alike.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Chromium Stainless Steel Construction\u003c\/strong\u003e - Delivers exceptional erosion resistance, pressure resistance, and long-term durability for high-round-count use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e6mm ARC Chambering with 1:7.5 Twist Rate\u003c\/strong\u003e - Optimized for the high-BC 6mm ARC projectiles, providing flat trajectories and superior long-range accuracy.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5\/8x24 Threaded Muzzle\u003c\/strong\u003e - Industry-standard threading allows easy attachment of suppressors, muzzle brakes, and flash hiders.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntermediate Gas System with .750 in Gas Block Journal\u003c\/strong\u003e - Reduces recoil and improves reliability, compatible with standard AR-15 low-profile gas blocks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNickel-Ion Corrosion-Resistant Finish\u003c\/strong\u003e - Protects the barrel surface against rust and wear, maintaining performance and appearance over time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Proof Research\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 130377\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 843068130377\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 6mm ARC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 14.5 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwist Rate:\u003c\/strong\u003e 1:7.5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuzzle Thread:\u003c\/strong\u003e 5\/8x24\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Block Journal Diameter:\u003c\/strong\u003e .750 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas System Length:\u003c\/strong\u003e Intermediate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Chromium Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Nickel-Ion\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1 lb 9 oz (approx.)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGun Platform:\u003c\/strong\u003e AR-15 (PR15)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\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\n]]\u0026gt;","brand":"PROOF RESEARCH","offers":[{"title":"Default Title","offer_id":44134784073850,"sku":"FLX-195858","price":664.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/306284556.png?v=1781060142","url":"https:\/\/tlooutdoors.com\/products\/proof-research-pr15-6mm-arc-stainless-steel-barrel-14-5-inch-5-8-24-1-7-5-twist-130377","provider":"TLO Outdoors","version":"1.0","type":"link"}