Pro-Am/68 Carbine barrel thread spec ?

[Silvester17847]

Does anyone know the counter bore size/depth and thread spec for a Pro-Am/68 Carbine barrel?

[Tominator]

If I'm not mistaken, they have the same threads as A-5 barrels, which would be UNF 7/8-20.

[Silvester17847]

If I'm not mistaken, they have the same threads as A-5 barrels, which would be UNF 7/8-20.

Thanks, I can get a tap for $20 to check it out and that just leaves the counter bore it rides in, which I can get with a digit micrometer - I think it is 0.86, but will double check before using tools.

[Silvester17847]

Bump

Can anyone confirm that A5 barrels fit a ProAm?

I'm having a NelSpot clone body threaded for ProAm/68 Carbine barrels, but I'd love to know for sure that there are more options on the table; I have some stock Carbine and ProAm barrels and a long (16"?) rifled barrel in hand...

[Chappy]

Yes a5 and proam are same thread

[Silvester17847]

Awesome!!

Thank you!