The PEW Science Suppression Rating™ is the commercial industry standard for silencer sound performance. Use it to determine how “hearing safe” a particular silencer, weapon, and ammunition is for your particular use case!

Want to know how it was developed? Welcome to the Silencer Sound Standard™

SSS.1 - Main Page
An open letter to you, and the industry.
SSS.2 - Methodology Introduction
Step into the world of real gunshot analysis.
SSS.3 - Hearing Effects
Learn about the physiological effects of gunshots.
SSS.4 - Test Method and Results
How did we do it?
SSS.5 - Suppression Rating
The most accurate and meaningful rating system available.
SSS.6 - Sound Signature Reviews™
How do suppressed firearms perform in the real world?
SSS.7 - PEW Science Rankings
Silencer performance, sorted and summarized.

Manufacturers, Dealers, and Distributors: Request information and quotes here.


To protect the integrity of the data, the reliability of the results, the trust of the public, and our intellectual property, all website visitors should note the following:

No silencer manufacturer or third party has influenced or controlled anything published on this website. No firearm or silencer distributor, sales team, organization, or any industry affiliate has or had any influence or control over the data, technology, methodology, or results presented in this Standard.

All opinions expressed are those of PEW Science LLC, who is not responsible for the use or misuse of any data on this website. Firearms allow you to control energetic combustion events and ballistics when used properly and in accordance with manufacturer guidelines; therefore, your safety depends on your adherence to those guidelines, as applicable.