Jaeger Precision dives into learning more about the SAVIA PCC H 7.5" GBBR which uses the MWS system in this video. This features a steel BCG, MIM steel trigger group parts, CNC buffer tube and rail, and an aluminum alloy upper and lower receiver. Other features are a quick-adjust hop-up, a 7.5" M-LOK aluminum handguard, and compatibility with MWS-type BCGs and most trigger group parts.  The package includes a SAVIA LIKISEI lightweight aluminum 165mm barrel and 35-round mid gas magazine, and is also compatible with TM spec Hi-Capa gas magazines.