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The 8.6 Blackout is one of the more exciting cartridges to come along in years, and this Faxon RemAge barrel is a clean way to get into it without a full custom build. Chambered for 8.6 BLK and cut in the Modified Light Palma profile, this 16" barrel gives you a versatile length that handles supersonic loads unsuppressed while still doing its thing with heavy subsonic .338 projectiles when you bolt a can on the front. The aggressive 1:3 twist is the whole point here, spinning those long, heavy bullets fast enough to stabilize them and dump serious energy on target.
Faxon machines these from 416R stainless steel at their Cincinnati facility, then runs each one through stress relieving, air-gauge testing, and magnetic particle inspection before it ships. The bore and exterior both get a salt bath QPQ black nitride treatment, which is a tough, low-maintenance finish that shrugs off wear and cleans up easy. Up front you get an 11-degree target crown for consistent bullet release and M18x1.5 muzzle threads with a tapered shoulder, so mounting a .338-rated suppressor or muzzle device is straightforward. Just remember 8.6 BLK sends a .338 bullet, so your can needs to be rated for it.
The RemAge system is the easy button for barrel swaps. It uses a Remage-style barrel nut that torques with a standard AR armorer's castle nut wrench, so you can headspace and install at home without a lathe or a gunsmith visit. Barrels made after job number 8923 (produced from late 2023 on) work with both Remington 700 and Faxon FX7 actions, which opens up your platform options nicely. Since 8.6 Blackout runs on the standard .308 bolt face, your existing bolt and magazines carry right over.
Faxon backs the whole thing with their Lifetime Guarantee, which is the kind of confidence you want behind a precision barrel. Whether you're building a compact suppressed hog rig or a do-it-all bolt gun, this is a solid foundation to start from.
RemAge barrels produced after job number 8923, which is late 2023 forward, are compatible with both Remington 700 and Faxon FX7 actions and similar patterns. Earlier production barrels fit factory Remington 700 actions only. Since 8.6 BLK uses the standard .308 bolt face, your existing .308 bolt and magazines carry over.
Not necessarily. The RemAge barrel nut is designed to torque with a standard AR armorer's castle nut wrench, so you can handle the swap and set headspace yourself with the right go gauge. It's one of the main reasons the RemAge system is popular with home builders who want to skip the lathe work.
The 1:3 twist is required to stabilize the long, heavy .338 projectiles that 8.6 BLK fires, especially in subsonic loads. That aggressive spin also adds rotational energy that boosts terminal performance on target. It's a big part of what separates 8.6 Blackout from lighter cartridges like 300 Blackout.
Yes, the M18x1.5 muzzle threads and tapered shoulder make mounting a can straightforward. Just make sure your suppressor is rated for .338 caliber, since 8.6 Blackout sends a .338 bullet and a .30-caliber-only can won't work. The 16" length runs supersonic loads unsuppressed and still does well with subsonic loads when you add a can.
| UPC | 816341026414 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 700B863N16NMQ |
| Length | 16'' |
| Model |
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