1. Sound Signature Review 6.136 – Resilient Suppressors Jessie’s Girl on the Beretta 21A subcompact semiautomatic rimfire pistol. This is the technical discussion for this white paper, published 03-JAN-2024.

2. Gas blowback out of your AR-15 ejection port. Do you know why it happens? When you add a silencer, does it change what happens unsuppressed? How do you know how much it will change? What are the variables? Let’s revisit this basic discussion. Often requested by PEW Science members. Part 1.