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OSS Suppressors

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OSS Suppressors with Flow-Through™ Technology

Viking Arms are proud to announce they are now the UK distributors for OSS Suppressors.

OSS designs, develops & manufactures advanced weapon suppressor systems built with our patented and proven Flow-Through™ Technology that prevents toxic blowback.

By directing expanding gas away from bore-line, routing it forward through OSS’s unique Flow-Through™ coil and deflector design and out the muzzle, sound levels are effectively suppressed at the shooter’s ear, toxic gas blowback and rifle recoil are dramatically reduced, and weapon performance is improved.

This is a an extremely rugged suppressor, the HX-QD® 556 – updated with our newly designed flash cap – is built with patented and proven Flow-Through™ technology, delivers hearing safe mid-130s dB and zero flash performance, is full-auto rated, easily passes the USSOCOM Reliability Stress Test, and has no minimum barrel restrictions – it’s the ideal suppressor for all 5.56 rifles.

A short and extremely durable suppressor, the HX-QD 556k – updated with our newly designed flash cap – is built with patented and proven Flow-Through™ technology, delivers sub-140 dB and zero flash performance, is full-auto rated, easily passes the USSOCOM Reliability Stress Test, and has no minimum barrel restrictions – it’s designed and built for extreme use.

Compatible with Muzzle Brake-QD 556 and Flash Hider-QD 556.

A strong “utility player” suppressor built with patented and proven Flow-Through™ technology, the HX-QD 762’s design and development were heavily influenced by the U.S. Army’s CSASS and SDMR requirements, it delivers 136-139 dB performance, is full-auto rated up to 5.56, and is cross-platform compatible up to .300 WM — there’s no other suppressor like it on the market.

Compatible with Muzzle Brake-QD 556/762, Flash Hider-QD 556/762, and Comp-QD 762.

The new HX-QD 762 MG suppressor was designed and developed – utilising Flow-Through™ technology – to meet emerging military requirements for belt-fed machine guns.

In collaboration with military and OEM partners, the HX-QD 762 MG was specifically engineered to effectively reduce full-auto sound and flash signature without negatively affecting weapon reliability.  In addition, battlefield communications are dramatically improved.


This video is a demonstration of blowback – the gas and toxic particulates that can blow back into your face when you suppress a modern rifle with a baffle suppressor.