Hey folks, putting together an MWS build with a MARS-H lower and an MLOK MWS upper with a 13.5” LW barrel. Two questions:

1. The LMT BCG is out of stock everywhere. I was going to use the JP Enterprises FMOS BCG with their high pressure bolt. Does anyone know if this will pose compatibility issues?

2. I love the JP Silent Captured Spring in my AR15 builds. Does anyone know if their AR10 version is compatible with the MWS? I imagine it’ll fit just fine, but didn’t know if it would pose any performance issues.