FN Herstal Firearms banner
1 - 3 of 3 Posts

· Registered
79 Posts
Discussion Starter · #1 ·
I am having a qty of short bbls machined to work with either the original rec or the new receivers I am making for the px90 project and want a little input on what twist rate would be preferable , 1/7 or 1/9
1 - 3 of 3 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.