The Kratos M4 Receiver Extension is a 6-position, Mil-Spec sized, AR15 / M4 profile buffer tube and is designed to work with Mil-Spec dimensioned M4/AR-15 type collapsible stocks.
Constructed of impact-extruded 7075-T6 aluminum with Type III, Class 2 hard coat anodizing for an extremely hard, abrasion resistant surface.
Finding the perfect length of pull is easy with six adjustable stock positions.
Material: Impact Extruded 7075 aluminum
Finish: Type 3, Class 2 hardcoat Anodize
Made in USA