Luger with threaded barrel

[porthole]

Originally Posted by sheepherder

The thread size may be 1/2 x 28tpi...The same as an AR-15/M16 flash hider. Many suppressors are threaded this size. If you have an AR, try the flash hider on it.

Can't tell the size. I tried both SAE and metric thread pitch gauge, none of the gauges seem to be an exact match.

Somewhere between 16 TPI or 1.5 mm.

Looking at the threads it almost looks like pipe cut