FAB Defense FX-AGR870FK M4 Collapsible Buttstock for Remington 870

Upgrade your Remington 870 with the FAB Defense FX-AGR870FK M4-Style Collapsible Buttstock — a tactical enhancement designed for shooters who demand versatility, control, and a modern platform feel from a classic shotgun. This buttstock replaces the factory stock on your Remington 870, giving you an adjustable length of pull via a familiar M4-style collapsible design, so you can dial in the perfect fit whether you’re running gear in the field, competing on the range, or protecting your home.

Built from high-strength polymer, the FX-AGR870FK is engineered for durability and reliability in demanding conditions. The M4-compatible tube interface means you can also swap in any standard M4-pattern stock or pistol grip accessory, opening up a world of further customization options. The ergonomic cheek weld provides a consistent sight picture shot after shot, while the overall design keeps the shotgun balanced and maneuverable.

Whether you’re a hunter looking for a lighter, more adaptable setup, a home defender wanting a better-fitting platform, or a competitive shooter seeking a performance edge, the FAB Defense FX-AGR870FK delivers a meaningful upgrade over the standard Remington 870 stock.

At Deep Roots Rifle Co, we carry a strong selection of tactical shotgun accessories and custom parts. Order online at deeprootsrifleco.com and take advantage of our fast shipping, or stop by our gun store in Eustis, Florida, where our knowledgeable staff can help you find the right fit for your Remington 870 build.