OSS Helix HX-QD Magnum TI 338 Suppressor

Manufactured by OSS Suppressors
SKU: OSS-1577
MPN: OSS-1577
Manufactured by OSS Suppressors
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Items that are regulated by the ATF and NFA have restrictions and requirements: •Your Entire Order will ship only to a Federal Firearm License holder •NFA restricted items require class 3 licensing and documentation •A copy of your order/invoice as well as the current FFL License for your local dealer must be emailed to ffl@primaryarms.



OSS Suppressors took the traditional baffle style suppressors and threw them out the window. With their line of suppressors, they use a flow-through design that more resembles a turbine to slow down hot expanding gasses over a longer period of time than baffles do. This offers many benefits like less gas blowback into the action, a cooler running suppressor, and a longer service life all while still reducing decibels levels dramatically. The Helix HX-QD TI 338 is compatible with a wide range of calibers from 5.56 all the way up to .338 Lapua Magnum. The internals are made from a mix of 17-4 PH Stainless Steel and Grade 5 Titanium while the external sleeve is made from Titanium, black Cerakote finished, and fully welded to the internal structure. If you are looking for the suppressor of the future, you can't go wrong with the OSS Helix-QD 7.62 TI.

  • Compatible with OSS QD muzzle devices
  • Patented flow-through technology
  • Less gas blow back
  • Runs cooler than traditional baffle cans
  • Full auto 5.56 rated
  • Rated up to .338 Lapua Magnum
  • 17-4 Stainless deflectors with Grade 5 Titanium coils
  • 17-4 Fully welded Titanium body
  • Black Cerakote finish
  • Weight: 18.3 oz.
  • Length: 8.7 in.
  • Diameter: 1.6 in.

Decibel Levels at Shooter's Ear:
  • 132 – 136 dB on 20” Remington 700 Rifle using commercial grade 150 gr ammo
  • 134 – 138 dB on 24” .300 WM bolt-action rifle using match grade 190 gr ammo
  • 137 – 140 dB on 26” .338 Lapua bolt-action rifle using match grade 285 gr ammo
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Baffle MaterialStainless Steel / Titanium
Body MaterialTitanium
BrandOSS Suppressors
Caliber Gauge.30 Cal
Diameter1.6 in.
User ServiceableNon-Serviceable
Weight18.3 oz.

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