The Springfield Armory ECHLN FS UDT 4.5 Gear-Pac presents a compact, duty-ready 9mm that blends a ported 4.5" hammer-forged Melonite barrel, integral compensator and optics-ready billet slide for fast follow-up shots and reduced muzzle rise, and the factory-installed Viridian RFX11 green dot with Instant-On and a long runtime for rapid target acquisition in low light or dynamic defensive scenarios. Designed around a striker-fire action and a slim 1.2" textured polymer grip module, this model offers a 15+1 capacity and captive recoil system that keeps the 8" overall length and 23.924.3 oz weight manageable for concealed carry, range drills, and duty carry alike. The Gear-Pac includes a heavy-duty pistol bag to transport the pistol and accessories, and the white-dot front with U-Dot rear sights co-witness with the optic for intuitive shooting transitions. If you're a new shooter building skills, a duty officer wanting a compact service gun, or a competitive shooter running close-range stages, this optics-ready, compensated Springfield Armory handgun delivers controllable recoil, consistent accuracy, and the practical features that require an FFL transfer for purchase.