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Big magnum rifles deserve a can built specifically for them, and that is exactly what the KGM R338 is. This is a purpose-driven suppressor for .338 Lapua Magnum, .300 Norma Magnum, and similar large cartridges, constructed from laser-welded Grade 5/9 titanium to keep the weight around 19 ounces on a can measuring 9.1 inches long and 1.87 inches in diameter. That is a very manageable package for the amount of blast it tames, and the gray Cerakote finish shrugs off heat and hard use season after season.
The standout feature here is KGM's Adjustable Port End Cap, or APEC. It lets you tune the external gas flow at the muzzle, either directing gases to fight muzzle movement under recoil or closing things down for maximum sound suppression. Behind that end cap, KGM's baffle and gas flow design cuts back pressure and keeps toxic gases moving forward instead of back at you and your action. Less gas in your face, a cleaner-running rifle, and recoil that feels noticeably softer on cartridges that normally punish you at the bench.
A magnum suppressor is only worth running if it does not wreck your accuracy, and KGM put real work into that side of the equation. The bore is wire-EDM cut for true alignment and concentricity, and the internal gas pathing is designed to stabilize each round as it passes through, keeping point of impact shift to a minimum. Mounting is handled by a taper lock system, and this package includes a 3/4×24 taper lock muzzle brake, so attachment is fast, repeatable, and rock solid shot after shot. It also does a fine job containing flash, which matters when you are shooting in low light or just do not want a fireball announcing every trigger press.
If you run a long-range bolt gun in .338 Lapua or .300 Norma, this can was designed around your exact use case. It keeps a heavy rifle balanced, takes the sting out of magnum recoil, and helps you spot your own impacts instead of getting knocked off the glass. For serious long-range work, the R338 is one of the more thoughtfully engineered options in its class.
The R338 is rated for .338 caliber magnums including .338 Lapua Magnum and .338 Norma Magnum, and it also covers .300 Norma Magnum and smaller cartridges. It was designed from the ground up for large magnum precision rifles, so it is right at home on long-range bolt guns. You can run it on smaller calibers too, though a dedicated smaller-bore can will squeeze out a bit more suppression on those.
It uses KGM's taper lock quick-detach mounting system, and this package includes a 3/4×24 taper lock muzzle brake. The taper interface gives you a precise, repeatable lockup that helps keep point of impact consistent when you remove and reinstall the can. If your barrel has a different thread pitch, KGM offers taper lock devices in other patterns.
The APEC lets you tune how gas exits the front of the suppressor. You can open ports to direct gas and counter muzzle movement for better recoil control, or close them down for maximum sound reduction. It also helps lower overall back pressure, which means less gas blowback and a cleaner-running rifle.
KGM built this can specifically to protect precision. The bore is cut with a wire-EDM process for true concentricity, and the internal gas flow design stabilizes each bullet as it passes through, keeping POI shift minimal. That focus on repeatable accuracy is a big reason the R338 has a strong following among long-range magnum guys.
| UPC | 810042342408 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | RT-R338-TM-GRY |
| Caliber/Gauge | 338 Cal |
| Thread Pattern | 3/4"x24 |
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