Springfield Armory has expanded its roller-delayed personal defense weapon lineup with the new Kuna Tri-Lug 9mm pistol, adding an integrally machined three-lug muzzle interface to the existing Kuna platform. The configuration is intended to simplify attachment and removal of compatible suppressors while retaining the compact dimensions and operating system of the original Kuna. The Tri-Lug interface is machined directly into …