1. Sound Signature Review 6.157 – the Surefire SOCOM762-MINI2 on the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle, with a comparison case study of Surefire Total Signature Reduction Technology. Can you use a 30-caliber silencer on 5.56 as expect good results? How well does the Surefire technology scale when you change venting, volume, and bore size? The PEW Science research pedigree has the answers. This is the introductory discussion to this whitepaper published today, so let’s talk big picture.

2. Short topic – Are adjustable gas blocks bad? I mean, not really. Can they be? Yeah, sure. My kingdom for a compact, non-leaky block, with fine adjustments.