The Diamondback(R) DB9 Gen4 is an ultra-compact semi-automatic pistol chambered in 9mm with a 3.1 in stainless steel barrel and 6+1 capacity. Its OD Green polymer frame is paired with a serrated stainless steel slide protected by a black nitride finish. The short-reset double-action-only trigger adjustable rear sight and all-steel captured recoil system support practical concealed-carry performance.Key FeaturesUltra-compact semi-automatic 9mm pistol3.1 in 410 stainless steel barrel6+1 round capacityOD Green polymer frame and gripBlack nitride stainless steel slideShort-reset double-action-only triggerWindage-adjustable rear sightAll-steel captured recoil systemDiamondback Firearms(R) builds American-made AR-platform firearms focused on dependable function and practical feature sets. The brand is known for pairing common compatibility with modern rails optics-ready uppers and value-forward configurations across multiple finishes and trim levels. Diamondback rifles are designed for consistent performance for training and range use with familiar controls and straightforward maintenance.