Form 1 was approved today, but I couldn’t get any shops to chop my barrel until Saturday, so I just did it myself.
Hack saw, a washer against the gas block, and a drill bit stop around the barrel (to keep the cut perpendicular to the barrel. Then with the washer flat to the gas block, and the barrel flush with the washer, 180 grit, 1500 grit, and finally 3000 grit sanding and polishing of both barrel and washer.
Re-blued the raw areas with a Casey-birch kit. Now I want to crown it with an 11° piloted bit
5.45mm converts to .215 inches, so I figure I need a .205 to a .215 pilot.
Anyone able to crown this thing tomorrow?
Hack saw, a washer against the gas block, and a drill bit stop around the barrel (to keep the cut perpendicular to the barrel. Then with the washer flat to the gas block, and the barrel flush with the washer, 180 grit, 1500 grit, and finally 3000 grit sanding and polishing of both barrel and washer.
Re-blued the raw areas with a Casey-birch kit. Now I want to crown it with an 11° piloted bit
5.45mm converts to .215 inches, so I figure I need a .205 to a .215 pilot.
Anyone able to crown this thing tomorrow?