02-20-2016, 06:11 AM
I,m thinking the barrel is somewhat bigger in diameter the what is disireable. I measured a Keieger bull barrel and measured 1.002 for o.d.
For reference, a RRA freefloat forearm nut measured 1.058 I.D.
A larue rail barrel nut measured 1.028 I.D.
A Daniel defense barrel nut measures 1.021 I.D
J&t barrel likely works with there forearms, so you have to buy there part to make it work.
I stay away from companys like J&T, Blackthorn, model 1 sales, ect. ,Myself and many others I know of had problems with quality of parts from these companys.
You may want to consider using a different brand of barrel, the barrel nut not fitting over the barrel may be just the start of a bad purchase experience.
For reference, a RRA freefloat forearm nut measured 1.058 I.D.
A larue rail barrel nut measured 1.028 I.D.
A Daniel defense barrel nut measures 1.021 I.D
J&t barrel likely works with there forearms, so you have to buy there part to make it work.
I stay away from companys like J&T, Blackthorn, model 1 sales, ect. ,Myself and many others I know of had problems with quality of parts from these companys.
You may want to consider using a different brand of barrel, the barrel nut not fitting over the barrel may be just the start of a bad purchase experience.