AR -15 DPMS question

[Sniper]

Anyone know what the thread is on the end of the barrel for flash suppressors etc., Thinking it is 1/2 x 28?

Thanks!

 

[MUP]

I think it's 1/2-20

 

[infoman jr.]

You are correct. They are 1/2-28.

 

[Sniper]

Ok thank you!

 

[MUP]

Sorry about the mis-information Sniper! I work with coarse and fine threads daily, but didn't cross my mind about the special thread size for the barrels. :roll:

 

[Sniper]

No problem. I took the current flash suppressor off and went to lowes and tried a 1/2 -20 and it didnt work just to be sure!

 

[infoman jr.]

Sorry about the mis-information Sniper! I work with coarse and fine threads daily, but didn't cross my mind about the special thread size for the barrels. :roll:

It's a standard UNEF (extra fine) thread.