The Sauer 404 Synchro XT Stock/Receiver Assembly delivers ultimate ergonomics, shooting comfort, and recoil control by pairing J.P. Sauer & Sohn’s modular receiver framework with an ultra-rugged, polymer thumbhole stock. Crafted from nearly indestructible, weather-resistant plastic treated with a premium Soft Touch coating and non-slip elastomeric grip panels, this chassis features an infinitely adjustable stock comb that can be perfectly tailored to your posture and optics height using the forearm-housed Sauer Universal Key (SUS) tool. The self-supporting aviation-grade aluminum receiver features a proprietary Sauer Universal Mount (SUM) interface directly machined into the housing block, guaranteeing zero bedding shift and an absolute return-to-zero when swapping barrels. Equipped with a manual decocking slider for exceptional field safety and the four-stage adjustable DX2 match trigger module, this foundational assembly allows right-handed marksmen to instantly adapt their rifle setup to any caliber group or hunting scenario.