Gunsmithing Thread on AR buffer tube

[338RUM runner]

Anyone know what the thread is on a AR buffer tube, looks like 1.3/16-16 but not sure.

 

[ORD]

Re: Thread on AR buffer tube

You are correct...the thread pattern on all receiver extensions for the AR-15 is 1-3/16x16.

 

[338RUM runner]

Re: Thread on AR buffer tube

ORD Thanks for the info update.