HKparts P30 threaded barrel.
I bought one a few months back. I'm a nervous nelly. I winced ever time I pulled the trigger with a suppressor screwed on. HKparts has been great with me so far, but I still counldn't blindly trust in the machining work, even though I'm sure HKparts went through their own QC. HKparts contrated out the work to a local machininst, so I was told. Well, they did a good job. I asked Ted of Ritten Precision (local long range shooter and precision rifle builder) to test the barrel.
Here's the result:
I bought one a few months back. I'm a nervous nelly. I winced ever time I pulled the trigger with a suppressor screwed on. HKparts has been great with me so far, but I still counldn't blindly trust in the machining work, even though I'm sure HKparts went through their own QC. HKparts contrated out the work to a local machininst, so I was told. Well, they did a good job. I asked Ted of Ritten Precision (local long range shooter and precision rifle builder) to test the barrel.
Here's the result: