It's always a good day when the SBR you assembled runs smooth and makes lots of little holes without a single issue on first use. Only had to adjust the sights a little. (Most of the holes outside of 10/head were DA sight acquisition pistol drills at 30ft.)
For those interested:
Spike's Lower & Upgraded LPK
Badger Ordnance Safety Selector
LaRue Receiver Extension
Strike Industries Viper Mod-1 Buttstock w/rubber pad
Tubb's Flat Buffer Spring
CMMG Radial-Delayed-Blowback Upper
Mean Arms 9mm Mag Conversion (For CMMG)
DiamondHead Sights w/Blitzkrieg Lume Spike Post
Marker Band from Sighthound Ballistics (also on PMAGs)
3-Lug adapter w/flash hider (Rugged Obsidian 9/45 coming soon)
Alternate Upper: BlackRifle Arms 10" .300BLK Piston