True precision sig p365 barrel non-threaded black nitride_
Broach cut 6 groove rifling
Special 11 degree competition style target crown
Advanced proprietary broach cut design specifically
Made in the U.S.A
Other Features: 416r stainless billet, 11 degree target crown, match grade drop in barrel, 1:10lh twist.Improved and widened feed ramp over oem for more reliable feeding of hollow-point and defensive ammunition.