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

The Faxon Rimfire Straight Fluted 416R stainless barrel is built for rimfire shooters who demand consistent accuracy, lightweight handling, and superior craftsmanship from a 10/22 upgrade. It measures 16 inches, wears a black nitride finish, and comes threaded for a muzzle device. Precision machined in-house, it is the kind of part that changes how a rifle shoots rather than how it looks.

Faxon makes these barrels on its own equipment, and that vertical control is why the tolerances hold from one unit to the next.

What the Faxon Rimfire Straight Fluted Barrel Is and Who Needs It

This is a drop-in replacement barrel for the Ruger 10/22 platform and for anyone building a precision rimfire rifle from a compatible receiver. The 10/22 is the most modified rifle in America, and the factory barrel is almost always the first limitation a serious shooter runs into.

The Faxon Rimfire Straight Fluted profile is the defining feature. Straight flutes cut along the barrel add structural rigidity while reducing unnecessary weight, and they increase surface area for improved heat dissipation during extended firing sessions. That combination is exactly what a high volume rimfire barrel needs.

Key Features

• Precision machined in-house from 416R stainless steel
• Straight fluted profile for rigidity, reduced weight, and better heat dissipation
• 16 inch length balancing velocity against maneuverability
• Black nitride finish for a hard, corrosion resistant surface
• Threaded muzzle for a compensator, brake, or other device
• 1:16 twist rate with 6-groove button rifling
• Direct fit for Ruger 10/22 owners and precision rimfire builds

Steel, Rifling, and Dimensions in Detail

416R stainless is the standard material for match grade barrels, and there is a good reason for that. It machines cleanly enough to hold tight bore and groove dimensions, it resists corrosion, and it delivers the consistency that separates a barrel that shoots well from one that shoots well occasionally.

The rifling specification tells you what the barrel wants to shoot. A 1:16 twist rate paired with 6-groove button rifling is optimized to stabilize both standard velocity and high velocity .22 Long Rifle loads with minimal jacket deformation, and that translates directly into improved shot-to-shot consistency on paper.

At 16 inches, the barrel provides an excellent balance of velocity and maneuverability. Rimfire powder burns quickly, so a longer barrel adds very little speed while adding a lot of length, which is why this measurement suits recreational plinking, small game hunting, and rimfire competition alike.

Practical Use, Installation, and Care

Installation on a 10/22 is one of the easiest jobs in the gun world. Two screws release the barrel V-block, the old barrel slides out, and the new one seats and torques back down. Take the time to check headspace fit and confirm the extractor clears properly before you head to the range.

Use the threaded muzzle or protect it. If you are not running a device, keep the thread protector installed at all times, because damaged muzzle threads are far harder to fix than they are to prevent. Clean carbon from the threads whenever you swap devices.

Rimfire barrels need different cleaning habits than centerfire. Lead and wax fouling builds gradually and many rimfire barrels actually settle into their best accuracy after a fouling period, so avoid aggressive scrubbing and clean when groups open up rather than on a fixed schedule.

Pair the barrel with a quality trigger, a rigid stock, and good glass to get everything the Faxon Rimfire Straight Fluted design can deliver, and browse our parts and upgrades collection for the rest of the build.

Rimfire accuracy is cheap to chase and enormously satisfying to find, and the barrel is where that search should start. This one is machined right, finished right, and priced for a real build. Ships direct to your door, no FFL required.