The Sauer 404 Classic XTA Stock/Receiver Assembly serves as an incredibly versatile, highly adjustable foundational chassis engineered for full switch-caliber customization. The core package pairs a high-strength, aviation-grade aluminum receiver with an indestructible matte-black polymer MAX stock featuring a premium Soft Touch coating and non-slip elastomeric panels for flawless control in freezing conditions. The defining feature of the "XTA" configuration is its built-in, infinitely adjustable height comb, allowing marksmen to perfectly tune their cheek weld to completely align with their optic for a relaxed targeting position and smoother swing alignment. Precision-engineered to eliminate action movement, this component incorporates J.P. Sauer & Sohn's proprietary Sauer Universal Mount (SUM) interface directly machined into the receiver top to guarantee an absolute return-to-zero when changing optics. Outfitted with an onboard four-stage adjustable DX2 Quattro trigger module and an integrated manual decocking system for total field safety, it stands ready to accept all S404 modular barrels, bolt heads, and standard magazines.