Buffer tube threads on NEA-15 lower - milspec or commerical?

[Power Pill]

I just purchased a stripped NEA-15 lower from a supporting dealer, but the site has no details on the type of buffer tube threads.

Does anyone know if they would be milspec or commerical?

 

[Runningfool]

Doesn't matter. It is the stock that must match the buffer tube, the lower will accept either tube.
Fwiw, NEA buffer tubes are milspec now but the original ones were commercial.

 

[Power Pill]

good to know! thanks!

 

[dogzilla]

Threads are the same, but the tubes are slightly different diameter

 

[shhh]

The difference between mil spec and commercial receiver extensions:

http://i227.photobucket.com/albums/.../AR-15/buffertube-receiverextension-mil-1.jpg