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Suppressors, CL3 NFA Transfers

OSS Operators Suppressor System BPR4 and SRM4, 5.56 Core

$575.00

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  The BPR4™ is at the heart of the OSS System. This device controls expanding gases in a way never before performed. This control allows for the “tuning” of every device to the intended weapon’s operating system, barrel length, and caliber. Controlling the expanding gases, instead of simple baffle trapping, eliminates up to 95% of the back pressure created by traditional suppressors. The Signature Reduction Module as the name implies, this device was designed and engineered specifically to reduce visual and sound signature.

   The SRM™ is placed in line after the BPR™. The SRM™ can be built to achieve whatever signature level reduction is necessary. Generically speaking for a standard M4, an SRM™ 4 will bring the decibel level well below ear safe. As with all OSS modular components, it is for the operator to decide which components offer the greatest advantage for each mission or operational environment.

This BPR and SRM combo is chambered for .223/5.56, Demo model approx 200rds fired through it. One available All NFA rules apply


  • 1 Units in Stock


This product was added to our catalog on Tuesday 04 September, 2018.