OSS Helix Magnum (HX Magnum) .338 Lapua Suppressor - 5/8X24 Muzzle Brake Included

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The HX MAGNUM is an integrated flush mount system built with titanium, stainless steel and cobalt.  Even though the HX MAGNUM was designed for large-bore precision bolt rifles, the HX MAGNUM performs for a wide range of calibers and platforms. From 5.56 up to .338, and for hard to suppress platforms like AKs, M1A/M14s and Galils, the HX MAGNUM “does it all.” A self-tightening mounting device – the STS-Muzzle Brake (5/8×24 TPI) – is included.  This suppressor is “hearing-safe” on select .338 systems.

With the purchase of additional STS-Muzzle Brakes, the HX MAGNUM can be quickly switched between your guns. Just thread the HX MAGNUM onto the STS-Muzzle Brake, hand tighten and you’re ready to shoot.

The Helix HX-.338 Magnum can suppress a typical .338 bolt action rifle down to approximately 128 dB.

Currently, additional OSS STS-Brakes are not available from OSS.  However, with the purchase of a separate STS Flash Hider, the HX Magnum can be quickly switched between your 5.56 or 7.62 guns.   Just thread the HX Magnum onto the STS Flash Hider, hand tighten and you’re ready to shoot.

Click  HERE to purchase additional STS Flash Hiders.


Additional Information
Manufacturer OSS (Operators Suppressor Systems)
Model Helix Magnum (HX Magnum)
Type Rifle Flush Mount Suppressor
Caliber .338
Weight 25 oz
Length 8.37″
Finish Matt Black
Mount Thread Mount (Must use STS-Muzzle Brake)
Decibel Reduction Down to approx 138 dB on select systems
 Full Auto Rated  No

Additional Information Content

Modern Warriors

We started Modern Warriors for the sole purpose of providing a less expensive way to enjoy our love of buying and shooting some really cool stuff. What started as a hobby has turned into a business where we have developed the experience and ability to help you enjoy our same hobby and save you money in the process.

We specialize in tactical weapons, including suppressors, short barrel rifles and full auto weapons. We have routine experience in shooting the weapons we carry, so if you want our opinion on how a weapon operates, we will gladly provide it. We also have expertise working with licensed professionals in setting up gun trusts, which is an ideal way of purchasing, owning and operating any weapon restricted by the National Firearm Act. Don’t let the word “trust” scare you. It is very easy to set one up if you have the right help.

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