Pistol is an AMD65 kit from Clearview. Screw build. Screw kit, templates, and instructions came from marshhawk.com. Ewbanks receiver from Horns Custom Rifles. Muzzle attachment is a cut down original AMD device. Seemed to work OK. The rail on the bottom of the front handguard was a piece of stock I had lying around which I screwed on. The 1" scope mount attached serves as a place to mount a light or my left hand. Refinished about 80% of the gun with AlumhaHyde II then rubbed it down a bit with oiled 0000 wool to get a better match. Top cover and red dot are el-cheapos from CDNN. Mount still wiggles a tad but with ball park windage and elevation adjustments, I could hit a 10" plate easily at 50 yds. I preadjusted the red dot to coincide with the iron gights. Magazine is a Promag which ran just fine--surprise surprise--3 US parts for my rifle build. Range trip was short due to crummy weather, but got off about 200 rounds without a problem. Couldn't get it to bump.
My first build. No surprises, some easy custom fitting, and I learned a lot about drilling and tapping. Ruined one hole but snot welded it and redrilled. Came out fine.
Thanks for all the great info. There wasn't a problem that someone didn't have the solution for.