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Most multi-caliber suppressors ask you to give something up, whether that's sound performance, durability, or a face full of gas. The Faxon Harmonix Sentry .36 Cal takes a different approach. It's 3D-printed as one solid piece of Haynes 282, a nickel-based superalloy originally developed for jet engine components, so there are no welds, no press-fit baffles, and nothing inside to shift or loosen no matter how hard you run it. That material choice is the whole point of the Sentry. It handles sustained heat well beyond what titanium or stainless can tolerate, which is why it carries a full-auto rating with no minimum barrel length restriction on semi-auto or bolt-action hosts.
The .36 bore is the do-it-all option in the Harmonix lineup. It runs 5.56, .308 Win, 300 BLK sub and super, 338 ARC, 8.6 Blackout, .350 Legend, and 9mm PCC off a single can. Faxon publishes up to 25.8 dB of reduction across those platforms, and the internal geometry was designed around low backpressure, so you get real hearing protection without the gas blowback that makes suppressed AR shooting miserable. It even earned some independent bragging rights, ranking first at the shooter's ear in 9mm out of 22 cans tested at the 2025 Thunderbeast Silencer Summit.
Every Sentry uses the industry-standard HUB interface and ships with a 5/8×24 stainless direct thread adapter, so it goes straight onto most .30 and .36 caliber rifle barrels out of the box. If you want quick-detach capability for swapping between hosts, pair it with a MuzzLok Plan B compatible muzzle device and it comes on and off in seconds without tools. At 6.75 inches long and about 15.7 ounces, it's compact for what it can absorb, and the high-temp ceramic finish shrugs off the abuse. Made in Cincinnati, Ohio and backed by Faxon's limited lifetime warranty, this is the can to buy when you want one suppressor for the whole safe and don't plan on babying it.
This is the widest-bore option in the Harmonix line, and it covers 5.56 NATO, .308 Win, 300 Blackout sub and supersonic, 338 ARC, 8.6 Blackout, .350 Legend, and 9mm PCC. If you want one suppressor to move across multiple rifles, this bore size is the one that does it. Shooters dedicated to a single caliber like 5.56 may get slightly better suppression from the tighter dedicated bores, but the .36 is the versatility pick.
Yes, and it's arguably the best suited can in Faxon's lineup for hard use. The entire body and baffle stack are printed as one piece of Haynes 282, a nickel superalloy that tolerates heat well beyond titanium or stainless steel. There's no minimum barrel length restriction on semi-auto or bolt-action hosts either.
It uses the industry-standard HUB interface, and a 5/8×24 stainless direct thread adapter comes in the box, which fits most .30 and .36 caliber threaded barrels. Since it's HUB compatible, you can swap in adapters for other thread pitches or third-party HUB mounts. For fast swaps between rifles, Faxon's MuzzLok Plan B compatible muzzle devices give you tool-free quick-detach capability.
The Sentry comes in around 15.7 ounces without a mount, roughly double Faxon's titanium ION at about 8 ounces. That's simply the trade-off with Haynes 282, since the superalloy is denser but far more heat tolerant. If your priority is durability under high round counts and fast strings, the extra weight is what buys you that toughness.
| UPC | 816341029507 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | FFSILR3DPC3601 |
| Caliber/Gauge | 36 Cal |
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