• ODT Gun Show & Swap Meet - May 4, 2024! - Click here for info

AK guys this one is for you. Barrel threading

JET 5.45x39

Default rank <750 posts Supporter
Frontiersman
62   0
Joined
Nov 7, 2019
Messages
721
Reaction score
537
Location
Effingham County
So I picked up an SAR-1 recently and am looking into having the barrel threaded. Unfortunately the correct 14x1LH won’t be possible due to the turned down diameter at the muzzle. That being said I’m looking into 1/2X28. The barrel OD is coming out to ~0.475 I know the 1/2X28 has a min diameter of 0.455. Will that be enough thread engagement or will the threads be too “shallow”
 
Please post a pic of the .475" barrel end. There is hardly any barrel material left at .475. The minimum diameter of 1/2X28 is much greater than .455" Good luck with that!
 
Please post a pic of the .475" barrel end. There is hardly any barrel material left at .475. The minimum diameter of 1/2X28 is much greater than .455" Good luck with that!
True minimum is about 0.4935, that’s gonna leave it about 9 thou short on each side. But it should create a small bit of thread that I could then pin ?
 

Attachments

  • D2A87531-9C06-4962-B732-792D1E34FB76.jpeg
    D2A87531-9C06-4962-B732-792D1E34FB76.jpeg
    144.5 KB · Views: 8
Back
Top Bottom