BestCaliber
New member
- Joined
- Jan 10, 2026
- Posts
- 1
Hi everyone,
I’ve been searching for a .357 SIG barrel for a full-size H&K USP for quite some time, but they seem to be out of stock everywhere.
I wanted to ask if anyone knows of a reputable source that currently has one available, or if any member here happens to have one for sale.
A threaded barrel is preferred, but I’m open to non-threaded options as well.
I’m open to OEM or quality conversion barrels (.40 → .357 SIG), as long as compatibility and reliability are solid with factory magazines.
Any help or leads would be greatly appreciated.
Thanks in advance.
I’ve been searching for a .357 SIG barrel for a full-size H&K USP for quite some time, but they seem to be out of stock everywhere.
I wanted to ask if anyone knows of a reputable source that currently has one available, or if any member here happens to have one for sale.
A threaded barrel is preferred, but I’m open to non-threaded options as well.
I’m open to OEM or quality conversion barrels (.40 → .357 SIG), as long as compatibility and reliability are solid with factory magazines.
Any help or leads would be greatly appreciated.
Thanks in advance.
