Independent Testing • 2025 Thunder Beast Silencer Summit
#1 of 22 at the Shooter’s Ear in 9mm
The HARMONIX® platform ranked first at the shooter’s ear in both dB (133.20) and peak pressure (91.45 Pa), and second in dB(A), against 21 other suppressors. In 5.56 it placed in the top 8 of 86 while being one of the shortest cans in the top 10 at 6.75". Because Sentry and ION share identical baffle geometry, the results apply to both. All testing conducted independently by Thunder Beast Arms Corporation.
Why Shooters Choose Faxon Suppressors
Faxon entered the suppressor market with a different manufacturing approach. Instead of conventional welded baffles inside a tube, the HARMONIX® line is produced by additive manufacturing — 3D metal printing — which allows internal geometries that optimize gas flow, reduce turbulence, and deliver measurable sound reduction without the backpressure that makes a suppressed rifle unpleasant to shoot. A HARMONIX® body is one continuous piece of metal from mount to end cap: no joints to loosen, no welds to fatigue, no dissimilar metals to corrode. CORESYNC® uses the same printed baffle technology in a removable core, housed in a subtractively machined stainless body. The Twenty-Toucan® is fully machined from nitrided 17-4 stainless, because a modular can you take apart to clean and reconfigure is better served by conventional parts.
Materials are chosen for the job rather than the spec sheet. Grade 5 titanium where weight matters most. Haynes® 282 nickel superalloy where sustained heat matters most. Machined, nitrided 17-4 stainless where serviceability and value matter most. It is the same philosophy behind Faxon’s match-grade barrels, applied to the other end of the rifle.
The Lineup
Superalloy • Full-Auto Rated
HARMONIX® Sentry ›
Built entirely from Haynes® 282 superalloy for sustained and full-auto fire, belt-fed hosts, and institutional duty cycles. Same baffle geometry as the ION, so it suppresses the same; it just tolerates far more heat. 3D-printed monolithic body, high-temperature ceramic coating, HUB mount.
5.56 • .30 Cal • .36 Cal | 15.7 oz | 6.75" | $1,099
Titanium • Lightest
HARMONIX® ION ›
The Sentry’s baffle stack in Grade 5 titanium at half the weight. Built for lightweight rifles, hunting, and carbine use where every ounce on the muzzle counts. Carries an 800°F operating limit — it will take a short burst, but sustained full-auto is the Sentry’s job.
5.56 • .30 Cal • .36 Cal | 7.84 oz | 6.75" | $975
Removable Core • Serviceable
CORESYNC® ›
A subtractively machined 17-4 stainless outer body with a 3D-printed Haynes® 282 baffle core that slides out for cleaning, inspection, or replacement. Low backpressure, reliable from precision bolt guns to hard-running duty ARs. New for 2026: the Multical Kit No. 1 — one serialized body with 5.56, .30, and .36 cores, mounts, and end caps.
5.56 • .30 Cal • .36 Cal | $975 each | Multical Kit $2,100
.22 LR • .22 Mag • 5.7x28 • Full-Auto Rated
Twenty-Toucan® ›
Fully machined from nitrided 17-4 stainless — no 3D-printed parts — with a configurable baffle stack: run it full-length or as a short K can. Full-auto rated on .22 LR, .22 Mag, and 5.7x28mm — the only barrel-length restriction is a 5" minimum on 5.7x28 under full-auto. No semi-auto barrel restrictions. Fully user-serviceable, 1/2x28 direct thread. Hearing-safe at the muzzle in Summit testing.
.22 LR • .22 Mag • .17 HMR • 5.7x28 | 5.1–8 oz | $400
Which Faxon Suppressor Is Right for You?
| |
HARMONIX® Sentry |
HARMONIX® ION |
CORESYNC® |
Twenty-Toucan® |
| Best for | Sustained fire, full-auto, duty | Lightweight rifles, hunting, carbines | Serviceability, multi-caliber from one body | 22 LR, .22 Mag, 5.7x28; tunable length |
| Construction | 3D-printed monolithic Haynes® 282 | 3D-printed monolithic Grade 5 titanium | Machined 17-4 stainless body, removable 3D-printed Haynes® 282 core | Machined nitrided 17-4 stainless, modular baffles |
| Calibers | 5.56 / .30 / .36 | 5.56 / .30 / .36 | 5.56 / .30 / .36, or all three in the Multical Kit | .22 LR / .22 Mag / .17 HMR / 5.7x28 |
| Weight | 15.7 oz | 7.84 oz | See product page | 8 oz full / 5.1 oz K |
| Length | 6.75" | 6.75" | See product page | 5.75" full / 3.87" K |
| Full-auto rated | Yes | No — 800°F limit, short bursts OK | See product page | Yes — .22 LR, .22 Mag, 5.7x28 (5" min barrel on 5.7 FA) |
| Mount | HUB; DT adapter included | HUB; DT adapter included | HUB | 1/2x28 direct thread |
| User-serviceable | Sealed | Sealed | Yes — core removes | Yes — full teardown |
| MSRP | $1,099 | $975 | $975 / Kit $2,100 | $400 |
Rule of thumb: if the host is a machine gun, a belt-fed, or a rifle that sees thousands of rounds a month, buy the Sentry. If you carry the rifle more than you mag-dump it, buy the ION. If you want to clean the core, run three calibers off one stamp, or just prefer a serviceable can, buy the CORESYNC®. If it’s a .22 LR, .22 Mag, or 5.7x28 host — including full-auto — buy the Twenty-Toucan®.
Mounting
HUB Mounts, Plan B Compatible MuzzLok® Devices & Direct Thread
Every HARMONIX® and CORESYNC® suppressor uses Faxon’s universal HUB mount, so accessories interchange across the rifle lineup. Direct-thread HUB adapters are available in stainless ($65) and titanium ($95) for 1/2x28, 5/8x24, 11/16x24, and M18x1.5, plus Plan B compatible HUB adapters for shooters already running Q-pattern mounts.
For quick-detach, pair the can with a Plan B Compatible MuzzLok® muzzle device — brakes, flash hiders, and 3-prong flash hiders from $85. MuzzLok®’s left-hand locking nut installs shim-free and crush-washer-free with perfect timing every time. Standard MuzzLok® devices are not suppressor mounts; use the Plan B Compatible MuzzLok® versions for suppressor duty. The Twenty-Toucan® does not use the HUB system: it threads directly onto a 1/2x28 muzzle, no adapter required.
How to Buy a Suppressor in 2026
Buying a suppressor is simpler than most people expect. Suppressors are regulated under the National Firearms Act, so there is an ATF form and a background check, but your dealer handles the paperwork and the process is done electronically.
1 • CHOOSE
Pick your suppressor here or through an authorized dealer such as Silencer Shop.
2 • FILE
Your dealer helps you submit the ATF eForm 4 electronically, with fingerprints and photo.
3 • WAIT
Individual eForm 4 approvals have been running days to a few weeks in 2026; trust and entity filings can take longer.
4 • PICK UP
Collect your suppressor at your local FFL/SOT dealer once approved.
You must be 21 or older, a legal U.S. resident, and able to pass a NICS background check. Suppressors are legal in most states; check your state and local laws before ordering.
Faxon Suppressor FAQ
Are Faxon suppressors full-auto rated?
The HARMONIX® Sentry is full-auto rated in all three calibers, and the Twenty-Toucan® is full-auto rated on .22 LR, .22 Mag, and 5.7x28mm, with a 5" minimum barrel on 5.7 under full-auto as its only length restriction. The HARMONIX® ION is not: its Grade 5 titanium construction carries an 800°F operating limit. An ION will handle a magazine or so of full-auto fire, but it is not built for sustained or repeated full-auto use. If the host is a machine gun, choose the Sentry.
What is the difference between the HARMONIX® Sentry and ION?
Material only. Both are 6.75", share identical baffle geometry, and suppress the same. The Sentry is Haynes® 282 superalloy (15.7 oz, $1,099) and is full-auto rated; the ION is Grade 5 titanium (7.84 oz, $975) with an 800°F limit. Pick by how hot you run the host.
What calibers do Faxon suppressors cover?
Rifle cans come in 5.56 (5.56 NATO, .223 Rem, .224 Valkyrie, .22 Nosler), .30 cal (.308 Win, 6.5 Creedmoor, .300 BLK, .300 Win Mag, 6mm ARC, 6.5 Grendel, and 5.56), and .36 cal (8.6 Blackout, 9mm PCC, .350 Legend, .338 Federal, plus everything .30 cal covers). The Twenty-Toucan® covers .22 LR, .22 Mag, .17 HMR, and 5.7x28mm. The CORESYNC® Multical Kit covers 5.56, .30, and .36 with swappable cores on one serialized body.
What makes Faxon suppressors different?
Material and method matched to the job. HARMONIX® is 3D-printed as a single piece in Grade 5 titanium or Haynes® 282 superalloy, which allows baffle geometries that machining and welding can’t reproduce; CORESYNC® puts a 3D-printed Haynes® 282 core inside a subtractively machined stainless body so you can pull it to clean; the Twenty-Toucan® is fully machined and user-serviceable. Across the line the result is low backpressure with top-tier sound performance, verified independently at the Silencer Summit.
What mount system do Faxon suppressors use?
HARMONIX® and CORESYNC® use Faxon’s universal HUB mount. Direct-thread HUB adapters are available in 1/2x28, 5/8x24, 11/16x24, and M18x1.5, plus Plan B compatible adapters for Q-pattern mounts. The Twenty-Toucan® is 1/2x28 direct thread.
Can I use one suppressor on several rifles?
Yes. With Plan B Compatible MuzzLok® muzzle devices on each host, a HUB-mounted can moves between rifles in seconds. Make sure the bore covers the caliber: a .30 cal can suppresses 5.56, but a 5.56 can must never be used on a .30 cal cartridge.
Where are Faxon suppressors made?
Every Faxon suppressor is designed and engineered by Faxon Firearms in Greater Cincinnati, Ohio, and made in the USA to Faxon’s specifications. Faxon is an ISO 9001:2015-certified, federally licensed manufacturer and SOT, and every suppressor is covered by the Faxon Lifetime Guarantee.
Barrel, Muzzle Device, Suppressor — One Manufacturer
Everything from the chamber to the end cap, built to fit each other and backed for life.
HARMONIX®, CORESYNC®, Twenty-Toucan®, and MuzzLok® are registered trademarks of Faxon Firearms. Haynes® is a registered trademark of Haynes International. Silencer Summit data recorded and provided by Thunder Beast Arms Corporation; Faxon Firearms is not affiliated with TBAC. Suppressors are NFA items; eligibility and processing times are set by the ATF and subject to change. Check state and local law before ordering.
