I ordered an Angstadt lower in 9mm after they announced the MDP-9. I wanted to begin the process of getting an E-Form 1, and piecing together components such as trigger, safety, etc. I’ve got a surplus of 33 round mags, and waiting on ATF approval on a Rugged Obsidian can. So I’m pretty well invested into this project.

Angstadt has announced projects in the past that failed to come to fruition, so I anticipated this scenario and decided a CMMG radial delayed system would make a decent back-up plan. Am I going to run into any issues with this combination of upper and lower?

Thanks