1. Sound Signature Review 6.61 – The Q Trash Panda on the MK18; technical discussion.

2. That new build itch – getting that perfect handguard, gas system, and barrel length for your preferences – it can be really fun!

3. New test host selection. Big-bore silencers – 46 caliber. First on the agenda? .45-70. Let’s talk about it!

4. Hope you all had a wonderful Christmas. Let’s move into this new year with great motivation for continued good data, learning, and industry advancement! To all PEW Science members – your support means the world. The largest public effort to fully characterize suppressed small arms continues!