Wanted to ask if all AR’s chambered in 9mm have a standard thread pitch since most come with a flash hider....Thanks...Mark
February 10, 2018, 09:21 PM
dusty3030
Colt is 1/2 x 36. Some follow that, I've read some don't.
February 10, 2018, 10:14 PM
RB211
They can be found in 1/2-36 or 1/2-28, the latter is becoming more common for suppressor compatibility.
Mine is 1/2-28
February 11, 2018, 04:37 AM
sigarmsp226
Thanks guys. My lower that is on order is a PSA lower with plans to match it up to a PSA upper. I will try and call PSA on Monday to ask which pitch they use on the upper I am looking at....MarkThis message has been edited. Last edited by: sigarmsp226,
February 11, 2018, 07:14 AM
Black92LX
A quick peek of a couple 9mm uppers on PSA show 1/2-36 as the thread pitch.
———————————————— The world's not perfect, but it's not that bad. If we got each other, and that's all we have. I will be your brother, and I'll hold your hand. You should know I'll be there for you!
February 11, 2018, 07:30 AM
sigarmsp226
Black92 - Thanks Sir...I should have looked at others uppers on their site before asking here....The one I was looking at did not specify and never thought to look at other units...Thanks Again...Mark