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The .22 ARC has quickly earned a following among precision and varmint crowds, and this Faxon Match Series barrel is built to get the most out of it. Running a 20-inch length with a rifle-length gas system, it gives that heavy-for-caliber .22 ARC bullet plenty of runway to reach its full velocity potential. Faxon builds these in-house in Cincinnati from 416-R stainless bar stock, and every barrel is magnetic particle inspected and individually headspaced with precision gauges before it ships.
The heart of this barrel is Faxon's 5R hybrid rifling. Instead of lands sitting directly across from lands, 5R stages them opposite the grooves with gentler angles, which cuts down on bullet jacket deformation, helps velocity, and makes cleaning a whole lot easier. Paired with an 11-degree target crown and a 1:7 twist, it's set up to stabilize the long, high-BC bullets the .22 ARC was designed around. This is the cartridge Hornady pitched as .22-250 performance out of an AR-15, and a 20-inch barrel is right in the sweet spot for squeezing out that flat-shooting velocity.
The Flame Fluted contour isn't only about looks, though it certainly turns heads. The fluting adds surface area for better heat dissipation and keeps rigidity high while trimming weight, and the whole barrel comes in around 2.13 pounds. Inside and out, a Salt Bath Nitride treatment locks in the bore, boosts corrosion resistance, and extends service life. The M4-style extension gets a Nickel Teflon coating for slick bolt engagement and a tighter fit against your receiver.
A couple of things worth knowing before you order. The .22 ARC headspaces off a 6.5 Grendel-type bolt and BCG, so plan your build around that. It also pairs with a .750-inch gas block, and Faxon recommends an adjustable gas block to fine-tune the cycling and keep recoil impulse smooth. The muzzle is threaded 1/2×28 for your brake, comp, or suppressor of choice.
The .22 ARC headspaces off a 6.5 Grendel-type bolt and bolt carrier group, so you'll want to build around that rather than a standard .223/5.56 bolt. This is because the .22 ARC shares the same .441-inch case head as the 6.5 Grendel and 6mm ARC. Make sure your BCG matches before you assemble the upper.
This barrel is set up for a .750-inch gas block at the rifle-length gas port. Faxon recommends running an adjustable gas block so you can tune the cycling and smooth out the recoil impulse, which is a nice touch on a precision-oriented .22 ARC build.
The .22 ARC was designed around long, heavy-for-caliber bullets, and a 20-inch barrel gives them the length they need to hit their full velocity. That extra velocity translates to a flatter trajectory and better downrange energy, which is exactly what you want for varmint work and longer-range target shooting. It's a strong balance of performance and handling on an AR platform.
5R is a hybrid rifling style where the lands sit opposite the grooves using gentler, less aggressive angles. That design reduces bullet jacket deformation, helps preserve velocity, and makes the bore easier to clean since fouling has fewer sharp edges to grab onto. On a match-grade barrel like this one, it's a real contributor to consistent accuracy.
| UPC | 816341028050 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 15B22A7R20LMQ-5R-NP3 |
| Barrel Length | 20" |
| Caliber/Gauge | .22 ARC |
| Color | Black |
| Length | 20" |
| Model | |
| Product Type | Barrel |
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