IU 7870 Atlas Custom Works M870 Tactical Shotgun Black is a premium pump action springer built for players who want metal construction durability paired with field ready handling. Crafted from metal throughout this tactical shotgun delivers a solid, weighty feel that helps steady shots and improve follow through. With a muzzle velocity range of 380 to 400 FPS and a 20 round internal magazine the M870 design provides satisfying short range power and sustained target engagement without constant reloads. Adjustable hop up lets players fine tune accuracy for varied field conditions while the adjustable stock design expands the rifle length from 30 to 35.5 inches to suit shooter preference. At a listed weight of 7 lbs this shotgun balances presence and maneuverability for both outdoor skirmishes and dedicated home field play. The black finish gives a tactical aesthetic that complements themed kits and display collections. Feature rich and practical the IU 7870 Atlas Custom Works M870 Tactical Shotgun includes a full metal build that stands up to rigorous use and a pump action operation that feels intuitive to both new and experienced players. The included Picatinny rail gives space to mount optics or red dot sights for quicker target acquisition and the front sling mount allows fast carry options for secondary roles. Single shot operation emphasizes deliberate aiming and conservative ammo management while adjustable stock and hop up support personalization and accuracy tuning. Whether used as a primary close quarters platform or a display grade collector piece this M870 model rewards careful setup and routine maintenance. Search terms like Atlas Custom Works M870 tactical shotgun pump action metal shotgun and 20 round shotgun are naturally reflected in this overview to help customers find this robust, accurate, and customizable shotgun when shopping for high quality springer options.