Rifle Thread

[Sako851]

Hey all,

Sorry this is far out of my knowledge, this guy is selling a suppressor on trademe:

https://www.trademe.co.nz/sports/hun...67af257953cf77

He doesn't know what the thread type is, can any of your keen eyes tell?

Thanks for your help!

Edit: Thought I should mention I'm asking because I'm after a suppressor for my .308

[quentin]

Pitch seems to be 24 threads per inch, so my guess is either 1/2x24 (standard on .22LR, and my old gunworks .308 suppressor) or 3/8x24 (standard on .308 AR10's etc).
Get a photo taken of the crown of the barrel to determine which it is.

[Ryan_Songhurst]

Pitch seems to be 24 threads per inch, so my guess is either 1/2x24 (standard on .22LR, and my old gunworks .308 suppressor) or 3/8x24 (standard on .308 AR10's etc).
Get a photo taken of the crown of the barrel to determine which it is.

looks like 1/2x20 to me, have never heard of 1/2x24 being standard 22lr thread, 1/2x20 yes, if it was threaded by gunworks then pretty likely it will be, they thread most sporter weight barrels 1/2x20 unless they have been shortened more than a couple inches

[Kiwi Greg]

Pitch seems to be 24 threads per inch, so my guess is either 1/2x24 (standard on .22LR, and my old gunworks .308 suppressor) or 3/8x24 (standard on .308 AR10's etc).
Get a photo taken of the crown of the barrel to determine which it is.

1/2 x 20 is the standard 22LR thread, 5/8 x 24 is the standard AR10 thread

By the look of the pics it could well be 9/16 x 18, but its difficult without the diameter

1/2 x 20 is a little average on a 308 muzzle to be fair

[Sako851]

Thanks for all the replies guys. Appreciate you all!

He's going to contact gunworkx I believe and I will update here so the "mystery" can be solved. My .308 came with a threaded barrel also but no information as to who done it.. I'll have to post a pic up tomorrow :p

Kind of assumed my rifle would be 5/8x24.. Read somewhere that this was the most common for .308

[quentin]

looks like 1/2x20 to me, have never heard of 1/2x24 being standard 22lr thread, 1/2x20 yes, if it was threaded by gunworks then pretty likely it will be, they thread most sporter weight barrels 1/2x20 unless they have been shortened more than a couple inches

Yep - what Ryan said.
Got all my threads mixed up.

[gadgetman]

1/2 x 20 is a little average on a 308 muzzle to be fair

It's what they put on mine. Wasn't a great deal of meat to go any bigger, but could have gone for a finer thread.

[Friwi]

As kiwi Greg said, it looks like 9/16-18 , which is a common thread often seen on gun works threaded guns.

[Sako851]

Hey again,

I have attached a couple pics of the read on my Rem 7. Also in .308.

What do you think?

His thread looks to go out longer. No pun there typed it as best I could haha.

[Kiwi Greg]

Attachment 91775Attachment 91776

Hey again,

I have attached a couple pics of the read on my Rem 7. Also in .308.

What do you think?

His thread looks to go out longer. No pun there typed it as best I could haha.

The diameter is whats required

[Sako851]

Shall I take the photo facing down the barrel with the ruler measuring like the width?

[Kiwi Greg]

Shall I take the photo facing down the barrel with the ruler measuring like the width?

Yep that would work, Verniers would be better

[gadgetman]

Yep that would work, Verniers would be better

Digital callipers or micrometer even better.

Looks a coarse thread. 7 threads over 9mm gives it a pitch of about 20tpi or 1.25mm.

[Sako851]

Sorry guys, although I think I did a pretty good job with the photo, I don't have any of those other more accurate means of measurement.
Does this help?

Edit: hm it looks quite dark once uploaded, I'll try alter the photo to make it brighter

[Kiwi Greg]

Attachment 91784

Sorry guys, although I think I did a pretty good job with the photo, I don't have any of those other more accurate means of measurement.
Does this help?

Edit: hm it looks quite dark once uploaded, I'll try alter the photo to make it brighter

Attachment 91785

Most likely/is 1/2 x 20