Out of stock
SKU: EG4454
UPC: 874748005173
The Ergo Moss 500 Tactical Stock Adapter is a direct-mount platform that converts Mossberg 500 and 590 shotguns to accept standard AR-15 buffer tubes and ergonomic controls. This aluminum adapter enables shooters to install modern tactical stocks and pistol grips on their pump-action scatterguns, extending configurability far beyond factory limitations and substantially improving handling characteristics in dynamic shooting environments.
The adapter accepts any standard AR-15 buffer tube assembly, allowing infinite length-of-pull adjustment from compact configurations suited to vehicle-mounted or CQB work down to extended positions for reach and control. This modularity is critical for duty shotguns assigned to different operators or roles—one adapter platform can be quickly reconfigured without tools beyond the included Allen wrench. By reducing overall length and weight distribution forward on the receiver, users can manage recoil more effectively during rapid-fire strings or training scenarios. The interface is machined for precision fit, ensuring the AR-15 grip surfaces align properly with the trigger guard and receiver geometry.
This adapter is purpose-built for tactical operators, law enforcement instructors, military trainers, and serious private citizens who run Mossberg 500/590 platforms and demand ergonomic parity with modern rifle controls. Patrol units standardizing on ambidextrous AR-15 grips and tactical furniture can now apply those same specifications to their shotgun complement. Home defenders and hunters also benefit from the ability to shorten stock length, reducing overall weapon footprint in confined spaces and improving shot accessibility for shooters of varying stature without purchasing additional shotgun variants.
Mossberg 500/590 shotguns remain the industry standard for duty and defensive applications due to proven reliability and cost-effectiveness. The Ergo Moss 500 Tactical Stock Adapter bridges the ergonomic gap between pump-action shotgun fundamentals and the modular, fast-handling characteristics operators expect from contemporary tactical platforms, making it an economical path to modernizing existing shotgun arsenals.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
