1. Sound Signature Review 6.151: the Surefire SOCOM556-RC3 on the standard 10.3-in MK18. Two mounts. 3-Prong and closed-tine WARCOMP. Same old conclusion? No, actually. Technical discussion of this white paper published last week.

2. Research Supplement 6.152: Surefire RC2 vs. RC3 - What Changed? The Quietest 5.56 Rifle Silencers - Taming the MK18, Part 5. We do a deep dive into the technologies in the RC2 and RC3 for PEW Science Members, and give actionable performance data for field use.