Pred Defender Patented technology enables lightning fast reload for your Remington Model 870 and 870 Clone shotguns Proudly Made in the U.S.A.! Comes with all hardware and instructions! No modification required! For use with pistol grip and forend that does not extend onto receiver! Fits with TACSTAR (not included) sidesaddle immediately with supplied hardware! Use included adapter to switch between 12 Gauge 2 3/4" or 3" Ammunition