PROOF Research Barrett MRAD Pre-Fit Stainless Steel Barrel, 300 PRC, 26, 1:9 TwistThis PROOF Research pre-fit barrel is made for the Barrett MRAD and installs with no specialized tools.This barrel is PROOF Research part number 133651: 300 PRC, 26 long with a 1:9 twist, in stainless steel.Upgrade your build with this PROOF Research 300 PRC barrel.Key FeaturesFrom PROOF Research: Pre-fit for current-generation Barrett MRAD (no barrel-screw cross slots); Barrel extension pre-installed with matching bolt head; Straight taper contour, 1.00 in. muzzle; Threaded 5/8-24; PROOF has years of experience building MRAD barrels.The MRAD's modular design lets you swap barrels in minutes, and this pre-fit arrives with the extension and matching bolt head already set up.Built by PROOF ResearchThis is a stainless steel PROOF barrel, made for shooters who want PROOF's match-grade bore quality with the mass and steadiness of a full steel contour, a popular choice for competition and bench rifles.PROOF manufactures its barrels in Columbia Falls, Montana and holds them to tight bore and groove tolerances. Better heat management means the barrel cools faster between strings, which helps keep point of impact steady and can extend barrel life.Choosing 300 PRC at 26The 26 length and 1:9 twist were chosen by PROOF for 300 PRC. Match your bullet weight to the twist rate and you will get the stability long-range shooting needs.Before you buy, confirm that this exact fit, caliber and length are right for your action and your intended use. Barrels are specific to action type and length.Who This Barrel Is ForThis barrel is a good fit for shooters who want to upgrade a factory rifle, build a custom rig, or swap calibers on an action they already trust. Hunters like the weight savings for long days in steep country, and competitors value the consistency as the barrel heats through a stage.If you are planning a 300 PRC build, think about the whole system: action, stock or chassis, trigger, optic and ammunition. A premium barrel delivers its best results when it is paired with good bedding, a crisp trigger and quality ammunition.Talk with your gunsmith about muzzle devices, suppressor plans and final length before work begins, so the finished rifle balances the way you want and meets the rules for your state.Care and Barrel LifeClean the bore with a quality one-piece rod and a bore guide, and avoid aggressive abrasives that can wear the rifling. Carbon fiber exteriors only need a wipe with a soft cloth; keep strong solvents off the finish.Barrel life depends on the cartridge, the load and how hot you run the barrel. Letting it cool between strings, keeping the throat clean and tracking your round count will help you get the most accurate service life out of it.InstallationHave a qualified gunsmith install or chamber the barrel if you are not experienced with barrel work. Pre-fit and drop-in barrels still need proper torque and a headspace check with go and no-go gauges before firing. Always follow the instructions included with the barrel and your action maker's guidance.After installation, clean the bore, follow a sensible break-in routine and confirm zero before taking the rifle afield or to a match.Buying From UsA barrel is a part, not a firearm, so no FFL transfer is needed; it ships directly to you where local law allows. Browse more rifle barrels or see all PROOF Research products.Product SpecificationsManufacturer: PROOF ResearchPart Number: 133651UPC: 843068133651Caliber: 300 PRCType: Barrett MRAD Pre-Fit barrelMaterial: Stainless SteelBarrel Length: 26Twist Rate: 1:9Muzzle Thread: 5/8-24FFL Required: NoFrequently Asked QuestionsWhat caliber is this barrel?It is a 300 PRC barrel, 26 long, with a 1:9 twist.Do I need an FFL to buy this barrel?No. A barrel is not a firearm under federal law, so it ships directly to you. Check your state and local laws.What does it fit?It is made for Barrett MRAD rifles. Confirm your action model before ordering.Is it chambered?It is supplied ready to install; confirm headspace before firing.What is it made of?Stainless Steel, match grade.Order your PROOF Research barrel from BattleHawk Armory today.