Only OSS reduces blowback & toxic gas.

Unique coil and deflector design directs expanding gas away from bore-line, routing forward through suppressor and away from shooter’€™s face and lungs. Armed forces worldwide are realizing the benefits of OSS’s patented technology as it’s being adopted as the suppression standard for many government programs.

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The EL-QD 762 was designed and developed to meet the requirements of the U.S. Army’s Compact Semi-Automatic (CSASS) and Squad Designated Marksman Rifle (SDMR) programs.  View Elite Suppressors.


Designed to be quieter, shorter, lighter and stronger, the growing line of HX-QD suppressors now includes the HX-QD 556k, 556, 762, 762 Ti, and Magnum Ti.  View Helix suppressors.

All HX-QD models deliver the technical and performance features noted below and here.


  • Torque Lock System

    Patent pending, tool-less system uses rotational force from exiting gases to keep suppressor securely mounted on the OSS QD muzzle device.

  • Full-Auto Rated

    OSS suppressors full-auto rating guarantees suppressor passes extreme durability and performance tests conducted by the U.S. military.

  • Hearing Safe

    OSS suppressor decibel readings are taken with microphones located at the shooter's ear ensuring compliance with both military and OSHA safety requirements.

  • Precision Certified

    OSS suppressors are engineered and tested to meet the highest worldwide military accuracy specifications.

"The weapon system operates and functions as though it doesn't even know it'€™s wearing a suppressor."

- Lead Engineer at Major OEM