Flux Defense Raider X Flush SBR Stock Features The Flux Defense Raider X Flush SBR Stock is designed specifically for the Sig Sauer P320 chassis platform giving builders a dedicated stock option rather than a generic adapter solution. Its flush profile keeps the stock tight to the chassis body helping preserve a compact maneuverable overall package suited to short barreled rifle configurations. Because the stock is purpose-built for the P320 platform it integrates cleanly without requiring extensive modification to the host chassis. This focus on fitment helps the finished build maintain proper function and reliability. Every version of the Raider X and MP17 stock lineup including this Flush model ships with the compatible gas cap matched to its chassis saving the builder from sourcing a separate part. This included hardware simplifies the overall build process and ensures the stock and chassis work together as intended from the start. Flux Defense designs its stock systems around real-world SBR and PDW builds prioritizing compact size without sacrificing usability. For P320 owners assembling a flush-profile SBR the Flux Defense Raider X Flush stock is available for sale at GrabAGun. Flux Defense Raider X Flush SBR Stock Specifications Manufacturer: Flux Defense Model: Raider X Flush SBR Stock Compatible Hosts: Sig Sauer P320 Included: Compatible Gas Cap Available At: GrabAGun