Faxon Rimfire 16″ Flame Fluted 416R SS Nitride Threaded 10/22 Barrel

The Faxon Rimfire Flame Fluted 16 inch 416R stainless nitride threaded 10/22 barrel brings premium materials and precision machining to the rimfire world. Designed specifically for the Ruger 10/22 and compatible platforms, this Faxon Rimfire Flame Fluted barrel delivers exceptional accuracy, balance, and durability in a lightweight configuration. It is machined from 416R stainless steel and finished with a salt bath nitride treatment. Outpost Firearms stocks it for shooters upgrading a 10/22 build.

What the Faxon Rimfire Flame Fluted Barrel Delivers

The 10/22 is the most modified rifle in America, and the barrel is where the largest accuracy gains live. Factory rimfire barrels are built to a price, and replacing one with a properly machined match oriented barrel is the single change that most reliably tightens groups. This barrel is aimed squarely at that upgrade.

The salt bath nitride treatment provides long lasting resistance to wear, corrosion, and heat without compromising Faxon’s renowned manufacturing tolerances. Nitride is a surface conversion rather than a coating, so it does not add thickness or flake, and it leaves a hard, slick bore surface that cleans easily.

Features

• Machined from 416R stainless steel, the standard material for match grade barrels
• Salt bath nitride finish for resistance to wear, corrosion, and heat
• Flame fluted profile that reduces weight while enhancing rigidity
• Threaded muzzle, ready for a suppressor or muzzle device
• 16 inch length weighing approximately 1.4 lbs for a well balanced feel
• Drop in fit for Ruger 10/22 rifles and compatible receivers

Why Fluting Is More Than Decoration

The flame fluted design is more than just visual appeal. It reduces overall weight while enhancing rigidity and increasing surface area for improved heat dissipation. Those three things pull in different directions on a normal barrel, and fluting is the geometry trick that lets you get all three at once.

Better heat dissipation helps maintain accuracy over long shooting sessions by minimizing heat related shifts in point of impact. Rimfire shooters running long strings in a match, or a full afternoon of steel, will feel that on the last targets of the day rather than the first.

At 16 inches and roughly 1.4 lbs, the barrel keeps the rifle nose light and quick to move between targets. That balance is what makes a 10/22 pleasant to shoot offhand, which is where most people actually use them. A heavy bull barrel will hold marginally steadier off a bench, but the Faxon Rimfire Flame Fluted profile is far more useful for the way rimfire rifles are shot in the real world.

Installation, Suppressor Use, and Care

Fitting a 10/22 barrel is one of the friendliest jobs in gunsmithing. Remove the action from the stock, loosen the V block screws, swap the barrel, and torque the block evenly. Check headspace and function with dummy rounds before live fire, and confirm the barrel seats fully into the receiver.

The threaded muzzle opens up suppressor use, which is where rimfire really shines. Expect a suppressed 10/22 to foul faster and more heavily, since rimfire ammunition is dirty and a can sends more of that residue back into the action. Clean the bolt face and chamber more often than you would unsuppressed.

For the bore, use a bore guide and a coated rod, avoid aggressive brushing since rimfire barrels do best with gentle cleaning, and never leave solvent sitting in the bore. Keep the thread protector on when no device is fitted. Our parts and upgrades category has the rest of the 10/22 build kit, and you can read the engineering background from Faxon.

The Upgrade That Pays

Perfect for competition, target shooting, and general precision work, this barrel takes a good rifle and makes it noticeably better. For the money, a barrel swap remains the highest return upgrade available to a 10/22 owner. Ships direct to your door, no FFL required.