Today’s Topic:1. Sound Signature Review 6.237 – Blackbird Suppressors F556 on the 10.3-in MK18. HUB compatible 6mm silencer optimized for 5.56, 5.4 inches long without a mount, advanced hybrid design… how does this debut silencer from a new company in the space fit in with the playing field? Very strong performance and a testament to some design principles that continue to show efficacy. This silencer is available in both titanium and Haynes. Introductory discussion to today’s report.