Colt m16A2 upper build

[ssgross]

Last week I finally got around to making a point to finish this. Put my laser on to verify I'd get on paper, was going to shoot this week...woah! took me 18 clicks left to get it to zero down the length of my shop! Tested my laser on another rifle that was zeroed at the range...nope laser is fine. Swapped on a colt factor barrel from my a4...laser shows true again with the rear at mechanical zero. I emailed Fulton - either the barrel/extension threads aren't true to the bore, index pin was drilled off, or the front sight post was mounted off. General Manager Rich Hall says send it back along with my upper and they will fit a replacement to it and make it right. Good people over there. We'll get this done sometime! Patience with milsurps has always been rewarded.