The K9 16″ features an intermediate-length gas system with an optimized gas port for reliable operation whether suppressed or unsuppressed. The K9 continuous taper is the most effective profile for dissipating heat from heavy use. By shifting weight toward the back of the barrel, modern attachments on the front of the rifle help create a perfectly balanced and more manageable firearm. The updated target crown, carried over from the Purebred series, improves harmonics, fit, and finish.