Chamber: 9mm
Length: 14.5"
Twist: 1:10 button rifled
Contour: Light (0.740 dia at muzzle)
Muzzle Threads: 1/2"-36 TPI
Material: 416R stainless
Finish: Machine finish
Weight: 22.4 oz.
PLEASE NOTE: This barrel measures 14.25" OAL but measures 14.5" WHEN INSTALLED on a complete upper. JP measures their barrels the same way the ATF does, and that's with a rod down the barrel against the bolt face. So if you are planning on doing a pinned and welded muzzle device to make a legal, non-NFA 16" barrel, plan accordingly with a appropriate length muzzle device.
NFA Compliance Notice
This barrel is under 16" and can be used to build a short-barreled rifle (SBR) or AR pistol. All NFA rules apply. The final user is responsible for compliance with the law.

Awesome barrel for my PCC build
You cannot go wrong with a JP barrel and The Shooters Connection made sure I got it very fast with their excellent shipping time. Costumer service is A+. I am very pleased with both the product and the service. Keep it up!!!
Awesome
This barrel is awesome , fast shipping and good price