The Kuna is now available to order combines roller-delayed performance with a suppressor-mounting interface rooted in iconic HK heritage. Designed for pistol-caliber platforms, the integrated tri-lug system allows compatible suppressors to be installed or removed quickly and securely without tools. A simple push-and-twist connection makes transitioning between suppressed and unsuppressed configurations fast and intuitive. Paired with the Kuna's monolithic aluminum upper, fully ambidextrous controls and compact, highly maneuverable design, the Tri-Lug Barrel models offer a proven and convenient mounting option for compatible suppressors. Specifications and Features: Caliber: 9mm Color: Black Barrel: 6" Tri Glug Barre Sights: Hybrid Flip-Up Upper Receiver: Monolithic Aluminum, Type III Hardcoat Anodized Lower Receiver: Injection Molded Glass-Filled Polymer Operating System: Roller-Delayed Handguard: Integral, M-Lok Pistol Brace: Strike Industries FSA Trigger: Flat Aluminum Muzzle Device: Multi-Port Muzzle Brake Receiver End Plate: Picatinny Charging Handle: Reversible, Non-Reciprocating Safety Switch: Ambidextrous Trigger Guard: Integral to Receiver Grip: AR-Pattern w/ Adaptive Grip Texture Magazines: (2) 30-Round Weight: 5 lbs 5 oz