Gunwerks 6IX+ Suppressor: Full Review

Gunwerks entered the suppressor business with its 6IX and 8IGHT in 2019, having a desire to create the ideal suppressor for the long-­range hunter. Its entire business model was built around precision hunting rifles designed for use at extended ranges. The closer the shooter can get to the animal, though, the better. Gunwerks also believes in being prepared for long shots when no other option exists, which is why most of its rifles are chambered in magnum cartridges between the 6.5mm PRC and .300 PRC.

Gunwerks tested suppressors that were then-available before designing its own. Engineers learned that most .30-­caliber suppressors were built around and tested with .308 Winchester ammunition, for example. The typical .308 Win. cartridge contains about 40 grains of powder that transforms into hot burning gas that the suppressor must trap. A suppressor built around the .308 cartridge is optimized to contain that volume of gas while making the least amount of sound. Crank that volume of gas up to 70 grains of powder — as is commonly loaded in a .300 PRC — and the suppressor built for a .308 won’t sound so good.

To make a suppressor for magnum hunting cartridges, Gunwerks discovered that the best sound suppression came by eliminating the keyed slot from the blast baffle and adjusting the size of the expansion and other chambers in the baffle stack. The blast baffle is the first baffle that hot burning gas encounters once it leaves the muzzle. Gunwerks makes that baffle without a keyed slot because large magnum cartridges tested better without it. While most bolt-­action suppressors have a smaller expansion chamber — the area of the suppressor between the barrel’s muzzle and the blast baffle — Gunwerks uses a large chamber to accommodate the big dump of pressurized gas that comes with shooting magnum cartridges. Gunwerks also has a large secondary chamber between the blast baffle and the next baffle in the stack. This is to quickly trap as much of the magnum’s gas as possible. The rest of the baffle stack is what you’d expect to find on a suppressor for a bolt-­action rifle: Lots of baffles stacked fairly close together to strip gas away from the bullet moving through the suppressor. All decisions about the number and orientation of the baffles came through an iterative process of live-­fire testing and redesign using magnum hunting cartridges. 

One of the driving issues Gunwerks identified early when designing its suppressors was the need for easy removal with minimal point of impact (POI) shift when re-­attaching the suppressor. Gunwerks designed a simple muzzle device that attaches to the threads and can be secured in place with Rocksett or Loctite. The suppressor threads onto the Gunwerks muzzle device, which puts a tapered surface in front of the threads that secure the suppressor. While the practice of putting the tapered surface in front of the threads is common in 2026, Gunwerks was one of the first to do it. The tapered surface — when the suppressor is tightened in place — seals the carbon away from the threads. This makes it almost impossible for the suppressor to carbon-­lock in place. If hot burning gas can access the threads, carbon collects on them and prevents the suppressor from easily detaching.

Gunwerks designed some contingency plans with its suppressors and mounts. Magnum rounds generate more heat and carbon than short-­action standard rounds, so even with great mount design it’s not impossible for a muzzle device to get stuck in the suppressor. The “bore” of the Gunwerks muzzle device accepts a 3/8-­inch Allen key. Should the muzzle device get stuck in the suppressor, there is no need for any tools beyond a 3/8 Allen wrench and a large crescent wrench to separate the device from the suppressor. The base of the suppressor has flats to accommodate the crescent wrench, too, so putting the Allen wrench inside the muzzle device and pushing the two wrenches together will unlock the muzzle device.

Gunwerks also uses bore reducer bushings at the suppressor’s muzzle to get every decibel of performance from it. Everyone knows that a .30-­caliber can works fine with a .22-­caliber or 6.5mm cartridge but when the conversation turns to magnums, there are real benefits to ensuring the aperture at the muzzle matches the bullet diameter. Every Gunwerks suppressor comes as a .30-­caliber suppressor, but threaded bushings in the can’s muzzle allow the shooter to tailor the aperture size to the correct diameter. A correct aperture creates about a two-­decibel improvement that the ear can detect.

An ancillary benefit of using the aluminum bore reducers is easy suppressor repair if the barrel’s muzzle threads were cut incorrectly. If the threads on the muzzle are not concentric to the bore, an increased likelihood that the suppressor will sit crooked relative to the bore exists. The part of the suppressor most likely to suffer damage in such a situation is the endcap aperture where the bullet exits the suppressor. It is farthest away from the muzzle and any angle induced by poorly cut threads potentially draws the endcap into the line of fire. The aluminum bore reducer in the muzzle’s aperture — should it get struck by a bullet — would likely exit the suppressor. “Repairing” a damaged suppressor is as simple as threading in another bore reducer, which is more convenient than sending the suppressor back to its manufacturer for repair.

The Gunwerks 6IX+ suppressor is the ideal hunting suppressor for magnum cartridges. It has the expansion chamber and baffle stack layout perfected through repetitious testing performed by Gunwerks using magnum hunting cartridges. It is also available in either Grade 5 Titanium or 17-­4 stainless steel. I prefer using stainless-steel suppressors most of the time because the material is so durable and it’s hard for a company to screw up the manufacturing process. Titanium is much more difficult to work with because the heat of welding can burn the material, creating weak spots in the weld that can cause the suppressor to come apart when the rifle fires. Titanium baffles should only be welded together in an atmosphere of Argon, a rule that Gunwerks follows. Gunwerks also test­fires every titanium suppressor it makes to ensure the welds are correct.

Suppressor design is more complicated than assembling a stack of baffles together and calling it a day. Gunwerks did a lot of work upfront in research and testing before engineering a simple and user-­friendly suppressor that pairs well with magnum hunting cartridges. — T. Beckstrand 

Gunwerks 6IX+

• Caliber: 30
• Length: 6.5 in.
• Diameter: 1.7 in.
• Weight: 14.8 oz. (steel, with bore reducer and mount), 10.4 oz. (titanium, with bore reducer and mount)
• Material: 17-­4 or Grade 5 titanium
• Finish: Matte black (steel), Tungsten (titanium)
• MSRP: $765 (stainless steel), $1,145 (titanium)
• Manufacturer: Gunwerks, 307-­296-­7300, Gunwerks.com

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