These Barrels are turned, chambered and threaded on 4140 Chrome Moly (1 in 10 twist)  blanks by QC 10 in Tucson AZ. They are threaded 1/2 x 28 with a medium contour (.750) and finished with a Melonite Hard Cote. They are the perfect match for the Glock Small Frame or Colt 9mm AR15 lower Receivers.

Other lengths avaialable. Please contact us for details.