1. Sound Signature Review SSS.6.102 – The Otter Creek Labs Lithium on the HK SP5 9mm submachinegun. This is the technical discussion of this test data and analysis.

2. Thank you for your support, which enables this research to continue. Just created a new PEW Science Corporate Supporters page to help thank industry entities! Also, a quick note about the use of PEW Science Rankings and the Suppression Rating, to better inform silencer choices for your use case. There are other parameters to consider, as well – many use cases are different!