Pic6. Tungsten carbide piston with carbon grooves. This weapon uses a floating piston like the saiga shotguns.
Pic7. "Gas block" left side with angled setscrew for lock down. Note spring loaded plunger for timing gas plug.
Pic8. "Gas block" right side with angled setscrew for lock down.
Pic9. Bottom view of gas block showing access hole for the actual gas port.
Pic10. The total weapon with welded on muzzle break.
Pic11. Foam insert glued to stock for "CHEEK WELD". Actually needed for picking up quick red dot quickly. No weld, no red dot, no shot, NO SHIT!